EasyBCD

NeoSmart writes some pretty fancy pants stuff. One of them is the award winning EasyBCD.

Basically? EasyBCD is an easy way to configure your Windows Vista bootloader, so that you can set up partitions of other operating systems, without the knowledge of how to configure the Vista bootloader itself.

It's really easy to use, and no knowledge is really needed ot actually delve into the fiery pits of operating system love. Assuming that you'd like to dabble a bit.