[Whumbachumba]

You should look at some shock/spring combos or some quality coil-over systems. Other basic mods are CAI/SRI/V2 intake, headers (recomend Comptech if you have money), and exhaust (greddy, tanabe, apex'i, and magnaflow are all good).

After that, save up for some rims and tires, then a basic body kit and paint job, like a BW2 or WW lip kit. You could also get some blackhoused OEM headlights, or get some HID or Retrofitted headlights.

Once you save up 10k, supercharge it with a Comptech S/C and a Dr. Evil transmission. If you save up even more, you can get a 3.2TL/CL swap and the boost that. That is considering that you have the V6 version, if you have the I4, look at turbos.

There are quite a few things that you could do, the 6th gen aftermarket is starting to pick up as of late. v6performance.net has a good 6th gen accord subforum. You can find some very nice 'Cords over there, great for ideas and questions.