Well, I'm glad you've finally came to your senses and got rid of that civic!
Anyways, I could be an ******* and tell you to use search, but I'm feeling nice today.
You're first mods should be, in this order
Un-catted X pipe (get some MIL Eliminators to relieve the check engine light because of no cats)
these two alone will net you about 20hp gain. for about $500.
Get a C&L 80mm Mass Air + Cold Air Induction... theres another 15hp for about $375.
Underdrive pullies will add another 10hp, for around $130
and the most important mod to do, to wake up your car... is put a set of 4.10 gears in the rear end. you wont gain any hp, but the car will definatly pep up, MUCH faster.... gears plus install usually totals $500.
that should get you started.... if you have any other questions, check out my sig, or just PM me.