Winamp 5 is the single best piece of software ever coded. Never seen this thing bluescreen, my max uptime is in the region of 60 days. I started using it because windows media player is an absolute abomination for trying to play a large library of music and winamp can't be passed off as looking like a spreadsheet. On my work computer here I'm running 0.9.5 without any plugins or resampling and with a crapton of other apps open, including a virtual machine 24/7, I rarely hear skipping or see the CPU usage go above 5% on an aging XP 1.67GHz with 1GB of RAM. Even with some additional noise shaping and resampling it rarely goes over 3% utilization on my X2 4800+. That thing runs beautifully clean, never had a problem with it other than attempting to close it at the same time windows was trying to shut down (NEVER DO THAT!! I lost half my playlists and my columns ui config upon signing back in). I use ye olde special edition 0.8.3 at home because I have yet to find a good replacement for the columns ui plugin for that version and I've got it configured exactly to my liking.
What version of foobar are you running with what plugins and on what spec machine?