How to inexpensively passively cool: Radeon 9600 Pro AIW?

[JohnMK]

I'd like your advice in this regard. The Zalman ZM 80 C is just a bit too pricey for the person I'm building this for. Would a northbridge heatsink, attached with thermal adhesive compound, but sufficient even under heavy load? Your thoughts please. Preferably insofar as they relate to parts acquirable at www.newegg.com.

Also a very inexpensive heatsink for the CPU (an Athlon XP 2500+, non-overclocked) would be nice. Preliminarily I'm thinking of the Speeze Whisperock II for only $7.99 at www.newegg.com:

http://www.newegg.com/app/ViewProductDe ... 010&depa=1

Since I'm pairing this with an Asus motherboard that features Quiet Fan (speed controlling) technology with respect to CPU temperature, I'm hoping it can quiet the CPU heatsink down from full-speed when the CPU is not under load. Does anyone have any experience with the Q-Fan technology with Asus' AMD boards? (A7N8X-X in particular), i.e. does it work well?

Thanks!