oh, I did forget to mention................
The new Rocktron Replitone MP Modelling amp rack unit is supposed to be really good....my local Long & Mcquade music store here in Toronto has ordered one for me to DEMO (nice folks that they are

- so I'm looking forward to it
Actually, Rocktron invented the "modelling amp" about 15 years ago....and not Line6, like everyone is lead to believe....and the rest of their gear is pretty damn good....so I'm expecting this puppy to be up to that standard too.
...plus it costs only $399 USD online, which is considerably cheaper than the POD Pro at $599 USD, or so....
With the Replitone MP there are more effects capabilities wereby one can mix n match delay, reverb, chorus, flanger, wah, phaser, trem, etc....far more so than with the POD units....
I've read a few reviews, and by all accounts the amp 'tones' are real close,
so I'll let ya know SOON, when I've had a chance to put it through the paces.....
IF you want to hear a couple of tunes where I used the POD 2.3 on all guitar tracks....click onto the link below...and listen
to some of my recent projects like: "Nothing Fancy" "Sunrise in Nueiba" or "From Pie De La Cuesta With love"......
http://www.acidplanet.com/Lounge/ArtistDetail.asp?ArtistID=78884
The POD units DO indeed sound good (especially the Mod High Gain - Soldano overdrive setting - I love and use that quite a bit

....and the "clean" tones are good as well, BUT, in general...I find not a lot of variation between the ROCK sounds....the tones are not really that versatile - no matter how ya play/tweak the thing....
Hope this bit of info helps,
regards,
KEV