Last evening Microsoft released its Windows 7 Upgrade Advisor Beta tool, which will help greatly if you're not sure about making to jump to Windows 7 at this point.

At 6.5 MB, it's a simple and smooth experience which scans your system, letting you know if you meet the minimum requirements, and if your components, programs and devices are compatible with the new operating system. Finally, it will serve as a guide on your upgrade options.

Give it a shot if you like via the link below.