There's a HOA lot more than that available...
For minimal cost: paint bezels, replace hazard button w/ red JDM illuminated piece, brake and shift handles, short shifter, shifter bushings, dead pedal, stereo mods (these can get pricey).
For "Cost No Object": replace seats w/ racing buckets, harness bar, harnesses, gauge pods, gauges, floormats, LED lamp swap (blue and green work best unless you get overlays), Armrest extension, intercooler sprayer button/pump (can give a you a few ponies on a hot day, and the button looks cool), again- stereo, get a bobble-head of someone or something that will always make you laugh.