I don't think this has been posted before (but the search engine has failed me previously!).....
Comet special discount code to get a Humax Freesat HD box (the Foxsat-HD one) reduced from £149.99 to £134.99.
OK, you have to either pay delivery, or collect from store, but I'd put money on it being several times better than the cheaper Goodmans.
Enter code 0108EM6 at the checkout
Quidco cashback too!
Voucher code expires 4th August, so be quick!
The e-mail says "exclusive voucher codes", but I bet they're not.
Other "exclusive voucher codes": -
Save £20 Olympus 12 Megapixel Digital Camera £129.99 £109.99 0108EM1
Save £10 TomTom One GB V3 £109.99 £99.99 0108EM2
Save £40 Husky Wine Chiller £119.99 £79.99 0108EM3
Save 10% Kenwood Mini Chopper
Delia Cheat Product £18.95 £17.05 0108EM4
Save 15% Panasonic 5.1 DVD Home Cinema System with iPod docking and full 1080p HDMI upscaling £249.00 £211.65 0108EM5
Save 10% Humax Foxsat HD Freesat Box £149.99 £134.99 0108EM6
Even if they are exclusive, give it a try (as I'm not going to use any of them).