Frank - I went with the ICS as it is beefier, seems a bit more rugged. 52" fence, mobile base and dust arm as well.
I went with 3HP as the people I talked about it with said they had various brands 3HP saws and had never had an issue, or wished for more power. The 5HP would have meant a breaker change, not a big deal at all but had to draw the line somewhere on the cost! Also had to pay sales tax and ridiculous shipping cost. The 3 vs 5HP is only a $400 difference, but I think the 3HP will serve my needs just fine. And from what I understand Saw Stop will sell a higher HP motor as an add on if I ever do need it...
They have a demo saw at the store in Reno, so I got to play with it a little, and they offer a short training session as well for purchasers.
Looking forward to getting my new toy!