Most gamers probably already know this site, but just in case. When you find yourself fucked, go to http://www.gamefaqs.com. Walkthroughs, codes, etc.
Also, if you're stuck on deciding what to buy, check out some great reviews at ign.com. Start with http://xbox.ign.com and select your current machine on the menu (PS2, 360, PC, etc.).
Have fun.