In reply to Roberttaylor:
I am assuming by "not too steep", you mean not gully skiing. Plenty of options this time of year for long descents in the Cairngorms, particularly if you don't mind cycling and walking.
The Escalator on Braeriach is superb. You should be able to ski most of it from the top of Braeriach, but there may be a really short walking section. It's worth it. Descent the NW shoulder above Coire an Lochain, then head for the right hand of the marked streams on the map. You will see it if you cycle up Glen Einich, and can either walk beside it, or ski up. Although I haven't skied them yet, the big West facing corries of Braeriach (Coire nan Clach and Coire Bogha-cloiche) were looking great a couple of weeks ago.
Allt a Choire Mhoir, Taillears Burn and Caochan na Cothaiche on Ben Macdui are all great. I don't know what shape they are in right now, but imagine you should be able to get pretty low on all of them:
http://www.steepscotland.info/ben_macdui/
A little steeper than these, the East face of Cairn Toul. An absolutely superb line. You ski off the top into Coire an t-Sabhail (northern end the easiest), and can usually get down to near enough the River Dee.
http://www.steepscotland.info/CairnToul/
If you want considerably easier, the Allt Garbh on Beinn Bhrotain is a nice long cruise.