In reply to alpboy57:
The midges in the west coast at that time of year can be dire especially early morning and in the evening if it is calm. The good news is it is rarely that calm in Scotland and as long as it's breezy and you keep moving you'll be ok. If it's been dry for several weeks it'll be ok too.
Personally I get in the car and head for the Alps at 70 mph!
Another trick used by the locals is to keep running about screaming "Ya wee B******s" and waving your arms about, that scares most things off!
On a more serious note they are less of a problem on the east coast and can actually be just as bad or even worse in the lake district.
Just buy lots of anti-midge cream and a midge net. When climbing always lead and if you care about your second make sure you can complete the pitch quickly.
Scotland has lots of fantastic world class multi-pitch climbing in fantastic remote scenic mountain and coastal areas.
Just avoid camping in a sheltered hollow next to a stream and you'll have a great time.