I have a Dell Inspiron 510m laptop that I use for testing things (I used it for my Patespin series) that I wanted to install Windows 7 on, it still gives pretty good performance and has 2Gb RAM – the installation itself went smoothly and quickly – less than 45mins from format to finished 1st boot, but it doesn’t detect the wireless or video card.
I’ve been playing about with Windows 7 in a VM for a while now in a VM, but now the beta is out I wanted to install it on a physical machine, I’m not ready yet to upgrade my main laptop to Windows 7 (although I have a cunning plan to p2v my Vista install and convert to a VHD so I can dual-boot that way which is a neat trick)