Tell us about your gear and why you use it. Here is my rig:
(Note - all gear is rack mounted unless otherwise noted)

2 4 X 12 Peavy cabinets with Celestion G12T 'Hot 100' speakers.
1 Gemini P601 stereo power amp 200 watts per side - 4 ohm load.
1 Alesis 24 bit digital effects unit
2 TJ Raxx tube preamps
1 Johnson J Station Amp modeler - not racked with floor switch
1 Crybaby Wah Wah pedal - not racked
All connection via Monster Cables

Guitars:

1 Ibanez RG 270 DX Wizard II 2 octave neck 2nd octave scalloped
Bridge and Neck pickups - Seymour Duncan SH-8 triple coils
Mid pickup - Seymour Duncan 'Hot Stack' single/dual coil switchable
Floyd Rose floating Tremelo

1 Yamaha SE 700 HE 22 fret neck
Bridge and Neck pickups - Seymour Duncan SH-8 triple coils
Floyd Rose floating Tremelo

I like the convenience of rack mount equipment - it saves me time since I can leave all that gear cabled up. The Johnson J station amp modeler is the greatest thing since sliced bread. I can set everything clean on the preamps and emulate anything from a super clean Hartley-Thompson to a dual rectified growling Mesa Boogie. The Alesis digital effects unit give me my delay and is super accurate and clean. Add the Crybaby (so I can get my Hendrix off) and this is a very versatile setup for anything from country to the heaviest rock. Of the 2 guitars (my acoustic is a cheap Ovation and doesn't count!) the Ibanez is my favorite. It has a great fast neck, superior tone and sustain like you wouldn't believe. The Seymour Duncan pickups are the best rock pickups I have ever heard. The tone they produce in either a clean or distorted amp sound are excellent. And the fact that I can switch them between single and dual coil give me a tremendous range of sounds.

Tell us about your stuff....