In reply to Flinticus:
The South Ridge is nice and handy from Camasunary bothy, only one tricky bit descending from the South Summit. Easiest descent if returning to the bothy is to head SE to to the col with Slat Bheinn (traces of path) then descend the corrie to the south.
If you're ok with serious scrambling and the odd bit of Mod (Diff if you do the top chimney on Blaven rather than going round right) then the Clach Glas ridge is superb. From Camasunary start up Coire Dubh just south of Loch an Athain (rough) to reach the col between Garbh Bheinn and Sgurr nan Each. Return down the South Ridge. As good a day out as anything in Britain.
There's also a very quick descent down the upper part of Willinks Gully (west side of the col between the two tops), then escaping northwards to more open broken ground via a pale coloured scrotty groove about halfway down. Make sure you don't miss the escape groove or you'll have a right epic (as the eponymous Willinks brothers found out).