Oh wow, big question...
As far as software goes I use Nuendo 3 and Cubase SX 4, and Finale for a notator.
My favorite sampler is probably Kontakt, but occasionally I'll use HALion 3.
I bought lots of sample packs, but among my favorite ones are EWQL Symphonic Orchestra Platinum Edition,
SAM Horns / Trombones / True Strike 2 and Solo Sessions, and Extended Classical Choir 2.
For amp-simulation I find GuitarRig2 to be the best digital amp-sim ever.
For mastering I use Izotope Ozone3 as well as many various plugz I gathered.
To put down the whole list would just take all day
As far as physical gear,
I use Creamware Pulsar 2 Soundcard, Fostex VM200 digital Mix Board, M-Audio KeyStation Pro-88 MIDI keyboard, ECM Condenser and Shure Sm58/57 Mics, AVTRON Preamp, LG Monitors.
Guitars: US Fender Start., US Jackson KE-2 Kelly, Fender Acoustic, Admira Classical, ALTO Wireless connection.
Bass: Fender P-Bass, Takamine Accoustic (which I customized into a fretless).
Amps & Stompboxes: Marshall park 30W, Ibanez Acc. Amp 25W, Dunlop Crybaby, Digitech Whammy, Ibanez Rotary Chorus, BOSS CS3 Compressor, Danelectro Fabtone Distortion, Digitech Digidelay, Dunlop Tremolo, AKAI Tune Lock and a home made footswitch
Drums and Percussion: TAMA Drumkit with Zildjian Cymbals and a Paiste 22' China, hand made Syrian darbuka, hand made Egyptian Frame drum, IP Shaker, hand made chinese finger cymbals, VIC Firth sticks mostly.
Misc.: Hand Made Egyptian Oud, hand made indian Charmer, Meg / Oak Irish whisltes (D and Low D), Hohner Chromatic Harmonica, YAMAHA Alto Recorder, Hohner Accordion, AIWA Studio Headphones.
EDIT: *very* old post, lol... been thoroughly updated since.