My DH is a camping equipment retailer and at this time of year takes delivery of the new season tents. He is quite impressed with the quality of the Vango Albany tent range. (4,6 and 8 berth). He can usually tell when he pitches them for display whether he's going to get a load of "after sales problems" (which I think is shopkeeper speak for "it's a git to pitch!") From the comments he's made this range seem to be well thought out! This is praise indeed, my DH is a harsh critic of tent designers! Here's a link!
www.vango.co.uk/products/tentsinfo.aspx?productid=32&modelid=33