HMV have their mega discounts back on some Gerry Anderson sets again:
Stingray complete set £14.99
Joe 90 complete set £14.99
UFO Series 1 - £15.99
UFO Series 2 - £15.99
Captain Scarlet ISN'T reduced though.
Don't forget there are also 10% discount codes to be found, AND Quidco too - brings the price of Stingray down to around £12.00 delivered (provided your Quidco tracks, which mine doesn't always) or £13.49 if it doesn't.
Great stocking fillers for older children - usually boys in their late 30s or early 40s.
MOD EDIT - see correct links in first forum post