I currently have a WD Velociraptor 150gb as my main drive with Vista on it. I have a secondary WD 500gb drive for files and such, only about 10% full.
What I would like to do is somehow put everything from C onto E and wipe C clean, installing Win7 on the Velociraptor. I want to do this without erasing anything currently on my E
drive. Is this more trouble than it is worth?

Any ideas?

It's actually pretty simple.

Just move the files you want to keep over to your storage drive and then reboot with your Win7 DVD in your drive (and your DVD drive set to a higher boot priority than your hard disks). You can format and install on a specific drive from within the setup wizard for Win7. It won't touch your storage drive unless you tell it to.

Well, I may not have explained my intentions too well. I basically wanted to move everything, intact, into my E drive without overwriting anything currently on the E drive.
I did not want to reinstall vista and all the programs on C. I'm thinking this cannot be done, but was just checking with you guys.

This can't be done if by moving "everything" you also mean Windows as well. But honestly, the best way to do this would be to use your Raptor drive as your OS and Game drive and use the WD 500gb for everything else. The RPM, cache, and everything else is going to be slower on the 500gb which means if you install your OS there and your games, they are going to play worse than they do right now.

Dual boot is shit anyway. Just blow Vista away and install 7. You are going to spend 99.9% of you time booted to one OS anyway. You will never reboot to the other OS because it will will take too long.

If you really want to do it, you are going about it wrong. Moving Vista to the other drive will be a PITA, but possible. I would use EASEUS Partition Master to create a new partition on your E drive and do a Partition Copy to the new partition. This program allows you to make, move and copy partitions without formatting. Then you should be able to wipe your Velocirapter and install 7. Vista will need to stay C: or your apps and shit won't know where they are. Your other drive will need to stay E: because the same reason. 7 will be assigned F: or something, but that's cool because 7 doesn't give a shit about what drive letter the system is installed on. Worst case you may need to boot to your Vista DVD and do a boot repair.

Yeah. I figured it would be messy. Thanks.