Eddie,
Post a wanted add in oOple's wanted section here:
http://www.oople.com/forums/forumdisplay.php?f=7
Someone will get in touch if they have some for sale. This is the cheap, short term solution. You can expect to pay between £10 and £20 for a pack, depending on how good it is. It's worth spending more in the long run.
Saying that though, even with fairly old cells (like 1 season old) you won't really notice the difference, especially with that 4.5 brushless.
People at our level don't need competition packs just yet!
Failing that you could just buy some new ones from these places:
http://demonpowerproducts.co.uk/index.php?cPath=46
http://www.tjcells.co.uk/
http://www.nrgdynamics.co.uk/index.htm
You may find it hard to find a place that has cells in stock, but these ones here are in stock and are BRCA legal for 2008:
http://demonpowerproducts.co.uk/prod...oducts_id=2765
I'm quite tempted by some of these Yuntong ones myself for £33 a pack!
Anyone tried them?