f1oored:
Build your dad a stable, proven computer and spend the money wisely, with all due respect.
I just recently completed a build which included:
> Asus A7N8E-X Deluxe motherboard
> XP 3200+ Barton (400FSB)
> PC3200 DDR (1 GB)
> Matrox Parhelia (Multiple monitors)
> Maxtor SATA 160GM HDD
> Pioneer DVR burner / player
Spend the money on a nice sound system and really great monitor(s).
Good luck.
Brangwen