In reply to Gav Parker:
Ben Nevis - Castle Ridge III
Ben Nevis - Ledge Route II
(also Tower Ridge III - but for the experienced unless you want an epic)
Carn Dearg Meadhonach East Ridge II (& potentially combined withe Ben via Carn Mor Dearg Arete) - approach from Nevis Range uplift
Aonach Beag - NE Ridge III (remote-ish but definitely mountaineering!)
Ring of Steall grade I
+ plenty down in Glen Coe...
cheers