My setup these days is pretty scaled back.
MacBook Pro C2D 2.53Ghz, 8GB RAM, 240GB SSD from OWC, running Lion
Presonus AudioBox VSL44
Logic Pro 9
Mainstage 2.2
SampleTank 2.5XL
GuitarRig 5 Pro
Toontrack Superior 2.0
Palmer PDI-09 DI
Various Shure, Studio Projects, and AT mics
Horrid AT headphones; have to replace them
Line 6 POD HD500 for amp modeling
Korg USB MIDI controller
MacBook Pro C2D 2.53Ghz, 8GB RAM, 240GB SSD from OWC, running Lion
Presonus AudioBox VSL44
Logic Pro 9
Mainstage 2.2
SampleTank 2.5XL
GuitarRig 5 Pro
Toontrack Superior 2.0
Palmer PDI-09 DI
Various Shure, Studio Projects, and AT mics
Horrid AT headphones; have to replace them
Line 6 POD HD500 for amp modeling
Korg USB MIDI controller