Dual Boot Ubuntu/Vista on a Raid-0 system

I don't know how to do this but I'm going to keep this post up to date with progress or lack of it.
First, this guide looks at least promising although I'm still not sure if Fake Raid is the same as Raid-0
The impression I'm getting is that this may not be possible. But, two other possibilities exist:

1) Use MS Virtual PC 2007 (free) to run Ubuntu in Vista [Unfortunately, this table suggests it may not work that well]
If Ubuntu doesn't work well in MS Virtual PC, it should be possible to try some of the cross-platform VMs (VMPlayer or VMServer)
2) Boot to Ubuntu in an external HD (This is probably the best as Vista doesn't become involved at all)

As I'm likely to try the MS Virtual PC 2007 first, I've done some reading up about it. From what I can see from this, Feisty has a mouse problem in the VM but this shows how it can be fixed (apparently, it's a Feisty bug rather than a MS Virtual PC problem).
This guide might also help although it's a little out of date.
This article describes in detail how to use VMware (Player and Server) in Windows (although the word Vista is not actually used) to run Ubuntu in Windows. Details are also provided on the use of Qemu for the same purpose although VMware Server seems to be the favoured VM tool.
(9-06-07): I installed VMware Server yesterday on Cormac's XPS 9200 and installed Ubuntu Studio as a VM. This was a lot of work particularly as it needs a downloaded Ubuntu.iso (rather than the install DVD). However, it seems to be working fine now.
Note that the VMware Tools install is much more involved than it was putting the Tools into a VM WinXP. However, without the Tools, mousr movement is slow and jerky in the VM Ubuntu.
One problem I've noticed is that, even though I've added all the updates, the VM still seems to be kernel 2.6.20.15-lowlatency rather than the newer 2.6.20.16-lowlatency. Not sure why and may have to post to one of the forums about this.