I use Cooledit 2000+
I find it better for recording longer sets as it take up less resources than Soundforge.. and it can save directly to mp3..
main drawback is you dont have the record clip meter that soundforge does, so i usally set the levels with SF, then reboot, disable all the crap (antivirus, realplayer startcenter etc.)and record fresh.
Another thing is you can record straight to 48000 (DAT quality) then downsample it to 44100 when you save it if you're saving to wav to be able to edit in soundforge.
I do this many times a week and it seems to work ok..
.02$