If money isn't an issue, the Galaxy Tab 7.7 is amongst the very best imo. Had mine for a couple of months now, absolutely brilliant as an ebook reader, browser and hd mkvs on the super amoled plus screen....ooh Baby! Bought mine from the extremely dodgy looking but actually very good and responsive Panamoz.com, the 3g version for £440. Pricey yes, but it's a premium product that matches my iPad 2 in built quality and design.
Currently Honeycomb sadly, but ICS is confirmed.
16gb wifi can be had for £330 now.
Long thread about happy panamoz.com customers on AVforums,
http://www.avforums.com/forums/lapto...pinion-26.html