In reply to Tom Guitarist:
Plenty of great suggestions here...
I'd second the comments about Dow being a bit intimidating, its an amazing crag but perhaps not the friendliest intro to multi-pitch.
Also certain crags are better/worse in certain conditions, for example...
Gimmer is a flipping brilliant crag unless its really windy, and can be boiling when its really hot.
Dow is quite shaded so favours a hot day, and I wouldn't want to be caught out if there is a chance of rain there.
Raven Crag Langdale has plenty of choice for what you are looking for and is a little less exposed to wind, but isn't quite as classic as some of the others
To build on the borrowdale/ little chamonix recommendation... a few others in that neck of the woods:
- Troutdale Pinnacle
- Oxford and Cambridge Direct
Have a fantastic time! Classic Lakes multi-pitch trad is just brilliant!