In reply to robblowen: Was there a few weeks ago. Didn't see much of Riva, but head into Arco (plenty of parking, free between 12-1400) and there is a massive number of gear shops and places which sell maps, guides etc. All in English or German.
AAAAamazing place. Word of warning though, we tried 'The Hardest VF in the souther dolomites, a 5C in the cicerone guide, and were totally underprepared for it. We backed off but if you aim to do something like that its climbing shoes and gloves territory. Anything 1a-4c grade though was way too easy and I found myself unclipped for a lot of it because it just slows you down.
Looked incredible though.