Death,
Re-amping through a firepod works great !
Sync your Firepod and setup to an external clock source like a Lavry, Mytek or Apogee and you'll love it even more!
For re-amping, you'd probably want to use something like the Radial JDV for the guitar input. This gives you 2 ins for 2 different guitars and 3 outs of clean class A to which you can attach an amp thru, a clean XLR 600 ohm balanced DI-out to Firepod, A B aux out for a second amp, and a tuner. You get a hi & lo-cut filter a Pickup Drag pot to vary the pickup load (VERY BENEFICIAL TO YOUR TONE!) Polarity flip, 15dB pad and Ground Lift.
Track thru that box and you don't have to worry about any delay running guitar effects in your tracking software and then routing the output to monitors or headphone mix and you can attach directly from it to the amp at the same time.
If you want, you can then track a clean DI for re-amp and 2 (even 3 using the tuner out) other amps driven thru the JDV and then miked, all simultaneously into the FP.
Saw the NAMM demo and the new Firestudio coming this summer is even better. Combining some features of the Presonus Central Station with the Firepod. The FireStudio is an 18 input 18 output firewire recording interface with 8 excellent mic pres, MIDI I/O, SPDIF I/O, word clock, 8 channels of 96K adat (dual SMUX) in/out and a 36x18 DSP matrix routing mixer. Switch between 3 Sets of monitors with desktop remote control and 5.1 surround mode. Talkback, Dim, Mono, Mute and you can connect 3 FireStudios for up to 54 I/O's.