At 45 MPH front end begins to almost bounce it shakes so hard.

Usually a sign one of the front brake rotors is out of round. It could also be something wrong with the abs but I doubt it.

sounds like you have a wheel alignment problem. Not enough castor set. Have the front end checked out for loose worn bits. If you have a steering shocky in the system it is probably shot and not doing the job of stabilising the steering. Remember if the springs are a bit flat IE the front end is a bit low then the whole steering geometery alters and negative castor results as what you have described

Probably not, but we can't say until it is identified.
A very common cause of this in Camrys is that the rear suspension anti-sway bar retainer bushings become worn. See p 95
http://www.turboninjas.com/camry/sa.pdf

If you think the noise is more to the front then maybe a ball joint is worn, possibly the rack end ball joint or tie rod end.
Jack the front wheel up on each side in turn, grab the wheel at each side and shake it back and forth as hard as you can. If you hear or feel looseness, the problem is in the steering, as above.
Then shake the wheel while holding it at top and bottom. If you feel looseness then, the problem is in the front suspension joints somewhere.
Repeat this on the other front wheel. Let it down on the ground, then bounce each front corner up and down as hard as you can (you might have to have a second person with you doing this). If you hear a clunk or feel excessive bounciness, it is the shock absorber strut making noises. When bouncing like this, the car should resist, and not keep bouncing when you let go.

It sounds like a ball joint is worn, possibly the rack end ball joint or tie rod end.
With the bumpy ride it could also be that the front shock absorber has failed.
Jack the front wheel up on each side in turn, grab the wheel at each side and shake it back and forth as hard as you can. If you hear or feel looseness, the problem is in the steering, as above.
Then shake the wheel while holding it at top and bottom. If you feel looseness then, the problem is in the front suspension wishbones.
Repeat this on the other front wheel. Let it down on the ground, then bounce each front corner up and down as hard as you can (you might have to have a second person with you doing this). If you hear a clunk or feel excessive bounciness, it is the shock absorber. When bouncing like this, the car should resist, and not keep bouncing when you let go.

almost certainly a wheel bearing that is just about to break up.could also be track rod end if you have any play in steering.you need to jack up the car(wheel off the ground)and with your hands at 9-3 oclock, rock from side to side,any "play"will be OBVIOUS. enlist the "eye" or "hands" of a volunteer to help,makes it easier.

The part you are looking at is the steering damper.It can be damaged by repeated shaking but won't cause it.
Likely the condition you have is caused by bad lower ball joints.
The lowers have no grease fittings and as such, fail earlier than the uppers. There are other causes but happen less often. Your track bar mount can wear oblong, overall cumulative wear of all front end parts can produce enough side to side play to do that or the wheels may not be torqued down exactly to specifications. In extreme cases where all is good but the shaking continues, you can have additional caster adjustment added to the alignment specs. I am assuming that your tires are properly balanced?

I have this same car with exactly the same problem. Begins shaking at 40mph and stops shaking as soon as you let off the gas, but then begins again as soon as you press on the gas and smooths out as you get over 50. And the shaking is not felt through the steering wheel. Solution: Replace the transmission mounts. There are two of them, one on each side mounted on the frame right next to the shock strut. There is also a front and rear engine mount, but I replaced the two as described and shaking is gone.

SOUNDS LIKE A BAD TIRE AND IDLER ARM THAT SHOULD SOLVE IT.

Shocks are usually pretty much shot after 45-50K. Also check damper (sideways shock on steering linkage). Shake is either wheel balance or a worn steering component (should have been checked before alignment...shame on them if they didn't)

try the simple solution first put your front tires on back and back tires on front. check your air pressure then take it for a drive and see if any thing has changed. if so you probably have a badly worn tire. if no change have someone move the steering wheel back and forth wyle you are under the fornt of the car (dont forget to chalk the wheels) and see if any of your steering components are loose/moving. if nothing is loose and your tires are good try to bounce the front end. if you can really get the front of the car going up and down pretty easy you havce bad struts/shocks.