I've changed my mind and decided that 19's will be the best choice.
A quick photoshop of the wheels I'm leaning towards.
Proportions may not be quite accurate since I haven't seen a good picture of a Camry with 19s to compare with. (and I couldn't find a good image to use) Also, the original car I pulled these from had a staggered setup so the back wheel looks deeper than it will end up being.

Link to these wheels:
http://www.tirerack.com/wheels/Whee...ilterNew=All&filterWeight=W_22_25&sort=Weight