Gaming works fine in Linux. Use cedega (
www.transgaming.com) for running windows games on the binaries - almost like emulation for Linux - and then the rest of them are compatable with Linux anyway.
Look, Linux is just amazing. Do whatever the hell you want, with whatever customizations you want, whatever window manager you want, with whatever programs you wish to use - all free.
I use Gentoo, a completely source-built distro. Great stuff.
I run the following system:
Xorg 6.9 with the fantastic true transparency setup
Enlightenment DR17 with the amazing new WM released only a few days ago
Firefox
Open Office (better than M$ office, IMO)
Many MANY games
ALSA (Sound quality gets better and better with every release)
Other misc. things I don't feel like mentioning
Look, performance is better, stability is better, compatability is MUCH better (believe it or not) and audio performance is now up to par with all Windows sound. No, you can't use E-MU cards in Linux (alsa = no support) but I don't like them anyway. The 24/96 ice1712 cards are fully supported.
Open source is the ONLY way to go now. If you know how to use a computer, then you will not believe what you have been missing. SWITCH NOW!!