In reply to MG: Have been into Lochnagar a couple of times this season so far. Was in last Monday. There is quite a lot of snow in there already and there is going to be quite a bit more throughout this week. Avoid all the gullies, they will be a complete waste of time, there was no consolidation what so ever last Monday, I had a dicey escape from the small gully at the top of Magic Pillar on Monday, I do not see the snow pack improving that dramatically over the space of this week with the forecast.
Seeing as you haven't climbed in Lochgnagar before, it will be roughly 1hr 30 to the Meikle Pap if you go at it and you will be a little over 2 hours down into the corrie itself. With the short days the Southern Sector is ideal. Some good quality routes and you are just a short walk around the plateau back down to the pap.
Depending on what grade your climbing at exactly I'd reccomend:
Jacob's Slabs 75m III 4 *
Good climbing on the upper pitch, although I would say quite a tough going tech 4. Good wee route though.
Perseverance Wall area is probably your best bet I would say. Loads to do at your grade there.
Perseverance Rib 80m III
Nice line up the left of the buttress.
Also the line just to the left of Perseverance Rib is really good fun, it is not in the guidebook. It's called 'Never Say Die' III 4 and has really good gear and belays, good route.
Central Buttress is quite a sizeable day, especially when the weather is crap, we have had to bail off it before.
Definately I would say head for Perseverance wall area, all in your grade, good clibing and just 2 or 3 pitches, leave the big cliffs for the later months, plenty of Winter to come.
Cheers
Craig