In reply to Russell Lovett:
A slighty easier alternative to the round of Coire Lagan that gets you more Munros would be to head up onto the ridge via Coire a'Ghreadaidh to An Dorus, take in Sgurr a'Mhadaidh before heading south over Sgurr a'Ghreadaidh (the narrowest bit of the entire ridge) and Sgurr na Banachdaich. Here, depending on how you're feeling, you can descend easily down Coir' an Eich, or continue to Sgurr Dearg (optional escape down Sron Dearg), taking in the Inn Pinn if you feel up to it, and then descending to the head of the An Stac screes where you can also nip up Sgurr Mhic Choinnich. That would give you up to five Munros, with a couple of bail out points if time or energy reserves dictate. It's also less serious for a first Cuillin outing, particularly if you're on your own.