Hey there
We stayed her last year http://www.theoldforge-avebury.co.uk/ and it was really lovely. An easy walk to Avebury & WKLB in the really lovely little village of East Kennet. There was an OK pub about 15 mins walk (along quiet country lanes, rather than the hideous A4) and not much else; we had a barn owl who came out each evening to entertain us and were more than happy just wandering around by the river in the evenings. Great breakfast and really comfy rooms. Can't remember how much it cost but it certainly wasn't expensive and they have a family room.