Best place to buy parts for 89 integra?

[89teg]

I just picked up an 89 integra for free and I was considering making it a drifter or something. I need to get it running good and smogged before I do anything else though. It runs really rich and has a lot of miles but I think I can get it to pass smog with a little work. I'm going to replace the following on it, and some advice on getting aftermarket stuff would be helpful.
air filter
plugs
wires
egr
cat
02 sesor
oil change!!!!!!!
If anyone knows a good place to shop for these parts (good prices online) or any aftermarket performance adding stuff let me know. I used to work at Honda years ago, but I'm kind of out of the loop.