Seems as everything is fixed and I was late here to help so I'll just offer some very good links as info.
For easiest/safest dual booting or multi-booting. Not the way I do it but then again I dont mind hosing the Win stuff so I just move it down and let LiLo run as boot loader instead of the 1995 NT loader that xp still uses.
http://www.blackviper.com/Articles/OS/Multiboot/multiboot1.htm
Excellent Window's tips site
http://www.onecomputerguy.com/desktop.htm
The very best spyware advice there is other than just dumping windows.
http://forums.anandtech.com/messageview.cfm?catid=33&threadid=1346173&enterthread=y
Linux starter tutorial
http://www.linux.org/lessons/beginner/index.html
Also as an aside you can of course run any game or any windows program in linux.
There are so many windows emulators out now that it is just choosing which one you prefer. VMWare is actually very nice. Xandros works quite well. For just gaming Wine/Cedega works quite well. However if you are gaming alot then you probably have that as your hobby and just want easy and quick not customized and effective. I know because I run my games in windows too which is why I keep the dual boot.
The problems you had today are why I would steer people away from windows. If you have an issue like that in Linux you can go into a cmd line session and read your logs. Then you just copy and paste the error into google and 95% of the time you'll find the solution that you type in on a cmd line. You not only fix the problem you learn why it happened, how to fix it if it happens again and some basic cmd line info.
Windows allows processes to run with full rights even on non admin accounts which is why the spyware is so prevalent. It can give itself rights to alter your registry. That is the real problen with the OS that needs addressing. That and the fact it has memory leaks that force at least monthly reboots.
There will be a learning curve with Linux but that can be quite fun actually. Especially if you have a dual boot system so you dont get frustrated when something doesn't work.