If you've waited in vain for Paypal to include us brits in their affiliate payouts you might find Paybox an even better option. With a £5 referral commission for a free signup it must be the highest affiliate payout on a non-gambling site. I'm surprised that they haven't made more effort to recruit merchants though - it's p(l)ay amongst yourselves until there are enough customers for merchants to take notice of. It must happen though surely, and a few £5's along the way would be nice...
Also have a look at Smartcreds with £2 bounties.
Kevin www.mycharity.net (coming soon)
I think they aren't proper affiliate programs, more ways to refer mates (with a small benefit) Be careful, I'm sure these merchants arent gonna want to pay out large sums to certain individuals!
I have asked them about this and am waiting for a reply, (as I want to offer the opportunity of turning £1 donations, made using paybox for the first time, into £6) but meanwhile they have both produced banners for websites, and CD-Wow for one are pushing it as a way of customers getting a £5 discount on quite a big scale, so you *may* be wrong......