Should i install windows 7 on my comp?

Hmm, All the beta has been expired since August 1, 2009. You can't test it no more. It's too late to download a Release Candidate. With a RC, it won't shutdown every 2 hours till March next year, and will stop workin' completely in July 1, 2010

Windows 7 has been designed largely to address many of the complaints that users have flung at Windows Vista: it's too slow, too resource-hungry, and too different from Windows XP. So Windows 7 is faster than either Vista or XP, and Microsoft has also incorporated lots of interface enhancements as well as improved the software's ability to recognise newer types of hardware upon installation. Gone, for example, is the Vista sidebar that used to hold gadgets; you can still use gadgets, but they can be placed anywhere on the desktop.

Windows 7 also introduces a new file organisation structure called Libraries. Essentially, libraries are virtual folders that can point to any number of locations on your hard drive or network. A library called Music, for instance, might aggregate files from your local hard drive as well as the network to which you're attached. You can create your own libraries, but Windows 7 comes with several that are pre-defined but customisable.

Overall, the Windows 7 interface feels snappier and looks more sophisticated than Vista's. It's an admirable improvement.

For more information http://windows7.iyogi.net/