Are SAS drives any faster with VM's?

[ToddAndMargo]

Hi All,

I may be building a server up from scratch. Host: 64 bit CentOS 5.x. Guests: Windows Server 2008 (up to four of them as things grow). I was planning on using Ext4 on recommendation of this forum.

Question: Would the more expensive SAS drives make much of a performance difference on the guests? Or should I just stick with the less expensive SATA II drives?

Many thanks,
-T
p.s. be cool if SATA 3 drives came out any time soon!

[vbox4me2]

SATA III drives and boards have been out there for while.