In reply to beegsyboy:
Try posting this on Scottishclimbs.com, and you stand a decent chance of getting some useful replies. Also available on ScottishClimbs are guides to Glen Lednock and Dunira, which you might find useful.
My main memories of Weem were the ticks and falling off rather more than I'd hoped. Never been to Rockdust, but heard good things about it.
If you find yourself in Aberfeldy, the walking shop Munros has a mini-guide to Sport climbing in Perthshire, which has topos of Weem, Rockdust, and the various Dunkeld crags.