you got alot of questions so i will start with
What are some toyota enthusiast forums?
-club4ag(prolly the largest for your application)
What type of swaps can be done?
2T
3T
2TG
18RG
3TG
20R
22R
22R-TE
4A-GE
4A-GZE
4A-GE 20V
3S-GE
3S-GTE
5M-GE
6M-GE
7M-GE
7M-GTE
2JZ-GE
2JZ-GTE
1ZZ-FE
2ZZ-GE
V6
V8
What are some common problems with that paticular model?
it is not a sports car(that is the only one i can think of)
{but strip it of any interior, take the front axeles out, and you will have a rear wheel drive which is a plus}