Suitable system for Vista?

Hi all:

I am planning to put together a multi-boot test machine (using BootIt or
Ranish for booting). The immediate purpose is to test my own software on
a variety of MS OS's (old and new), including Vista x86 and XP/Vista
x64. I will use a retail XP Pro x86 as the main OS, others just for
testing (MSDN downloads).

Requirements:

Support 64-bit OS's (XP, Vista beta)
Run Aero glass on Vista
Use two processors on multi-threaded programs
Burn .iso images on XP Pro x86
Boot from CD and DVD to load OS's

Proposed system:

Antec TX640B Black ATX Mid-tower case (400 W power supply)
Antec SmartFan 80mm Case Fan
ASUS A8N-E Athlon64 ATX Mbrd, Nforce4 Ultra chipset
AMD Athlon64 X2 Dual Core 4200+ (2.2GHz, 512KBx2), Socket 939
1 GB PC3200 400MHz DDR RAM 184-pin
Western Digital 320 GB ATA100 IDE, 7200rpm, 8MB cache
256MB Radeon X1300 DDR PCI Express, TV Out & DVI
NEC 3550A Dual 16x DVD+RW/-RW/CD-RW (48x/32x/48x),16x DVD
3.5" floppy drive

I thought I would go with IDE drive to avoid any hassles with SATA
and/or RAID. I may use separate IDE drive for data.

Any comments/suggestions? This will be a custom-built machine, so
anything can be changed.

TIA,

David Wilkinson