Getting old cards serviced

[dante]

GaryB is right get a 14/15 card as finding a motherboard that can successfully accommodate 3 cards is a bit of a minefield.
CGF

I got my mobo (ASUS PK5E / Intel Core2 Quad Q9650) last year, with 3 PCI slots. Possibly these are still available.

[irrelevance]

I use the Gigabyte GA-P35-DS3L rev 2.0 with three cards. Solid motherboard with some tweakability good too. Would highly recommend.