The
Humax HDR Fox T2 is recommended by Which? and widely regarded. It will access via internet BBC iPlayer, YouTube, Flickr and internet radio. It will also stream audio, video and photo files from your computer via a home network.
500Gb may seem "massive" as the blurb goes but you need a bit for the buffer and you soon find that you can fill it up over the Christmas period with films 'to watch later'
A much cheaper alternative at the moment is the
Sony. This is a newer box and complies with the 2011 specification for Freeview HD which includes compulsory IPTV features and two USB sockets, making it possible that it could be upgraded to a YouView box using a software upgrade if the processor and memory are adequate (NO GUARANTEE OF THAT!) So far it is the only box approved to access the Freeview HD version of BBC iPlayer although this is, in my opinion, not as good as the "app" based version used by Humax in their Portal.
Cheaper still, if you can find one, is the Philips box. A lovely design, this was made by Pace with crap software from Philips. Firmware updates are supposed to have cured the glitches so it might be worth the risk if you are after a bargain.
I have linked to one particular company because 1)they are consistently the cheapest for good new Freeview HD+ boxes unless supermarkets have special offers 2)they have their very cheap extended warranty that costs nothing if you have not used it during the five years cover. 3) they are Which? magazine's 'Retailer of the Year' and 'Electrical Retailer of the Year' and have excellent product knowledge.
Avoid Argos - consistently the most expensive store for FVHD - and anything distributed by Harvard whose brand names for FVHD include Grundig (though they have lost the rights since July), Goodmans and Alba.