Hey I've got a fair amount of stuff to sell. All of this, unless otherwise stated, has been run in a system for a few months in a water loop with Swiftech HydrX corrosion inhibitor, with all copper components. I have not examined any of the parts for buildup, but I have seen no drop in performance.
2 x 120S single combo heater core seen here WITH CHROME FAN GRILLS:
http://www.moddershq.net/articles.asp?articleid=8

Both in silver with shroud + fan grills. Without fans. Copper barbs for 1/2" tubing.
This is $110 quids worth of heater core, I paid more like $140 from the US + the cost of the grills.
£20 each, plus whatever the shipping cost will be.
A swiftech 6002 K8 water block (For 1/2" tubing) for A64 (£30 now even at reduced prices)
Close to 2°C better than the previous 5000 & 5002 series
£15 + whateve postage
A Maze 4 GPU block in BLUE. Most Radeon Series blocks (9500, 9600, 9800, and X800 series) with the two hole mounted fans. Excludes the All-In-Wonders before the X800 Series ($44 in US)
Note that I have lost 1 of the thumb screws, however I provide a bolt that fits and works perfectly well.
£10 + whatever postage
A swiftech MCP500 pump (identical to this:
http://www.cooltechnica.com/Merchant...y_Code=DC-Pump , but in BLUE AND BLACK

the second revision without the impellor problems, and quieter)
In good quality, never run dry. RRP is $75.00 + postage
£20 + postage
Various other bits, I'll throw in for low cost if you buy any of the others
2 x 1/2" plastic 'T' tubing junction (1 blue, 1 black) (
£2 each if you buy any of above)
20 hose clips for 1/2" tubing (RPP £2 FOR 4), this style:
£3 if you buy any of above