In reply to Doms1:
There are some lovely circuits in the NW Highlands that will give you a base camp with all mod cons (well, a stream anyhow, and a flat pitch) and hills all around, as well as a bit of peace and quiet (but they are remote, so you need to be confident of your ability to cope):
1) From Achnashellach Station up the mountain path to Fuar Tholl, Sgorr Ruadh and Beinn Liath Mhor. Access to the gorgeous Easan Dorcha, with pines and a waterfall, as well as Lochs Coulin and Clair. (There's a lunch hut in Easan Dorca if you need a temporary shelter). Or go south towards Sgurrs Choinnich and a'Chaorachain, with more pines and a waterfall. Or come into the Beinn Liath Mhor area from Kinlochewe (there's a good bunkhouse there).
2) Poolewe/Aultbea into A' Mhaighdean and Ruadh Stac Mor. No pines or waterfalls, but some stunning lochs, hills and rocks, and a bothy.
3) Gruinard/Dundonnell's Corrie Hallie into Shenevall bothy, with the beautiful Loch na Sealga below and An Teallach above.
4) Ullapool/Rhidorroch/Inverlael. A stunning gorge and waterfall in the middle, just a little way off route. A good campsite (expensive though) in Ullapool.
There are loads more: pick any OS map of the NW Highlands and you'll find a few gems. Come in May for the best weather and to hear the cuckoos, and see the swans and waterlilies, even in the most remote areas. Be aware that buses may be intermittent out of season. Stay safe.