Thanks, Aedan! I saw 89W mooted as max temp for A64 3000, A64 3200 and A64 3400. What multiplier would one use to figure out the required PS capacity? I guesstimate that 89W * 6 = 534 W is conservative enough?
Such PS's from SPI Sparkle aren't unreasonable. Yet the PC Power&Cooling 510
ATX with PFC looks mighty nice. And expensive, naturally.