x64 Whole Disk Encryption

I would love to upgrade from 32 to 64-bit Windows (and eventually Vista), but there is a compatibility snag:  I need whole disk encryption (not encrypted virtual disks).  A disclaimer is necessary before I ask my question, though.

For the love of fuck, please don't start in how I would have to be a terrorist, warez kingpin, or a criminal in general to want a secure hard drive.  I also don't want the cons of whole-disk encryption, like potential data loss and performance decrease.  I am aware of the full range of consequences and HEAVENS FUCKING PRESERVE YOU IF YOU DRAW ME INTO AN ETHICAL ARGUMENT.

...so, yeah, does anyone know of any whole-disk encryption software with 64-bit Windows support?  I am willing to go commercial and shell out anything under $100.

>>5
Thanks for responding, at the very least.

Linux does a lot of things better, I gather.  At present, I don't have the free time to learn to use an unfamiliar operating system.

I dislike the idea of someone stealing my computer and, in addition to having a nice, new computer, having access to my CG art, writing, and, most importantly, a fuck-ton of code.  That is in addition to the usual concerns about identity theft and related fraud.

I mean, when it really comes down to it, I encrypt my hard drive for the same reason I lock my doors.  Although, granted, this "lock" is a good deal stronger.  =)