Looking at buying a 2007 Camry, what are some things I should be looking for?

Wear and tear?
Certain known problems?
Etc...

 

Read past posts on this year of car (Generation 6) at the Toyotanation website. This will give you a good idea of what problems are popping up.

The 4 cylinder engines are having issues with head bolts pulling out at around 60K miles. There is a thread at this site where people have been posting about this.