new system configuration advice wanted

[steve%prd.co.uk@localhost (Steve Blinkhorn)]

I am contemplating configuring a box from scratch to run Xen with
NetBSD and Windows guests.

Apart from hardware virtualisation support, which I take to be
essential, are there other processor features which are particularly
[dis]advantageous - number of cores, amounts of cache etc.?

Any other advice, known gotchas etc. that would be useful to someone
with long experience in the *nix world, but new to Xen?

-- 
Steve Blinkhorn <steve%prd.co.uk@localhost>