Welcome. These cars are so easy to work on. Plenty of space to work on and DIY.
The black wheels definitely look 5x better.
Which mods to do next depend on whether you are looking for performance or cosmetic improvements and your budget.
If looking for more power here are two great places to start with:
Basic Bolt on mods intake, exhaust tuning guide
http://www.ft86club.com/forums/showthread.php?t=81493
Forced Induction Buyer's Guide | $5,000 +/- (otd) | Daily Driver Spec
http://www.ft86club.com/forums/showthread.php?t=56783
My two favorite free mods on this car if yours is manual:
DIY - Easy clutch grab adjustment (~10 mins)
http://www.ft86club.com/forums/showthread.php?t=8040
How To: Clutch Spring Removal in 15 Minutes
http://www.ft86club.com/forums/showthread.php?t=84622