Who's liking Windows 7? I am!
I currently have W7 Home Premium x86 (32bit) 1gb ram, dual core on my brothers computer. Low specs and yet its as good.
I didn't have a lot of problems when installing but make sure you have your installation CDs for your drivers like integrated audio or use the internet to download your drivers. Find out what you have first on your computer that way you'll be prepared, should of done that myself lol