My understanding, and maybe I'm being ubernoob, was that you needed to have S-OFF to COMPLETELY get rid of Sense. Beastmod comes close to the AOSP I want, but it still has the sense dialer and I hate it. (Unless I am misunderstanding and the sense dialer was included as a matter of preference, rather than necessity.)
Ideally, I'd like to be able to load Cyanogen if it ever becomes available but right now it's not that big of a deal. ICS would be nice, but that's so far down the line I'm not too concerned.
If I can get rid of ALL sense (maybe keep the camera apk), and have a stock, unmodified AOSP with no bloat, I'll be happy, but I don't want to jump on that if it screws my ability to flash CM.