I use it in Digital Performer 4.61 on a dual G5 Mac. Works great. Sounds great (for a cabinet sim). Bear in mind, it can be processor-intensive and requires very low latency for live play.

I'd be using it in Cubase LE on a Dell 2.6GHz P4, 1GB RAM, one 80GB 7200 RPM drive. Any thoughts about that?

How do you use something like this live?

sibleypeck wrote: I'd be using it in Cubase LE on a Dell 2.6GHz P4, 1GB RAM, one 80GB 7200 RPM drive. Any thoughts about that?

How do you use something like this live?

Well, you'd just run your audio interface outputs through whatever live mixing board you're using.

But I was actually referring to playing along with your other tracks into your DAW. Anytime a DAW's audio interface has to i/o audio, there's some degree of latency (because of throughput, A/D conversion, processing) The higher the latency, the longer the gap between you picking a string and hearing it processed through Guitar Rig.

So, you need a system that can handle low latency to approximate realtime playing. Cool?

Now, you could just input a clean guitar signal, then apply Guitar Rig as you would any other effect plug-in and that would eliminate Guitar Rig having to process on-the-fly. That would minimize latency, but would eliminate that "working the amp" feel you might be used to if you're a guitar player.

An alternative might be hardware cabinet simulation like a Line6 POD XT or Vox ToneLab. I use Tonelab as well as Guitar Rig 2 for different approaches and colorations.

I used Guitar RIG 1 for some time and I thought it was very good. Now I am trying the 2, and it sound amazing if compared to previous version.
I suggest you buy at least a preamp, because in "direct input" on the soundcard you will loose lot of dynamics.