Sadly, my setup is pretty basic and budget-quality:

Gear:
Pentium 2 - 400Mhz
Turtle Beach Montego A3DXtreme (audio interface)
Yamaha RM1x (main sound source, crap sounds)
Behringer MX602A (6-channel)
Behringer Autocom Pro (2 channel compressor)
Technics SH8015 (5-band graphics EQ - not used when recording)
Altec Lansing 3-piece multimedia speakers (monitoring)
Sony MDR-V300 headphones
Sony MDR-CD280 headphones
Vantek imitation Strat
ROSS RG-10 practice amp
DOD American Metal distortion pedal
Sony F-V420 mic

Software:
Adobe Audition (for quick recording, and for noise reduction )
Live 3.0 (arrangement of instrumentals)
Cubase SX 2.0 (multi-track acoustic recording and mixing)
PSP Vintage Warmer (for analog warmth)
T-Racks 24 2.0 (mastering)
Audiomulch (audio experiments, creative processing)
lots of plugins, none used exclusively for any purpose

Yeah, my crap computer and crap audio interface definitely restrict what I can do. I can't use many plugins in realtime due to my weak processor, and my soundcard is pretty noisey. I've been working pretty exclusively in hip-hop for the past couple years, but I used to do a lot of nu-skool breaks, progressive house, and hard techno.