A few things first....you are getting your sky and freesats mixed up...
Sky do not make any freesat boxes.
Sky and Freesat are two serperate companies and identities.
The best of the "new flow" design sky boxes is the thomson, which works quite well in Moriaira. You can use these without a sky viewing card, and get the free to air (FTA) channels, with a freesatfromsky card and receive the FTA channels and Five, Fiver Five USA, Sky 3 Setanata Sports News, and some stonger alternate ITV and C4 region options, or with a sky subscription card and get all FTA, FTV and whichever sub channels you pay for.
The Humax HD is also good in Moriara.
Downside of freesat boxes: no ability to use a sky card, therefore no Fiver, Five USA, a vresion of Five that you will loose at around 5pm, confusingly the main EPG on freesat does not have all the FTA channels - only 140 last time I checked, but others are able to be added in a nonfreesatmode.
Although the humax hd does have the ability of the free BBC HD channel, and the slected ITV HD service, and the free recoerding and playback HDD options.
Personally I have installed for a few people who have insisted on the Humax and have later expressed interest in going for a sky card, due to the limited channels and desire to use their own sky card from home for more channels options.
if you really really want a freesat box, you can pick up great deals int he UK...look at the pice check / trackers on http://www.joinfreesat.co.uk/index.php/digital-boxes