Aynsley, here are some suggestions for two new places in Edinburgh you could play.
The Picture House is a brand new venue which has a capacity of 1500. It would be great to see you there (possibly on a co-headline date). Walter Trout is one of the first artists due to play there.
http://www.mamagroup.co.uk/picturehouse
A far smaller venue is The Three Monkeys which puts on blues acts every Saturday, some are fee paying other not. Might be best suited to an acoustic gig, but Paul Lamb & The Kingsnakes managed to fit on stage (just).
http://www.thethreemonkeys.co.uk/index.html
It has a sister pub called The Barrels Alehouse in Berwick Upon Tweed, where Oli Brown is to play next month:
Hopefully you could make one of these venues following a date at Blaydon or The Cluny in the near future!
Other forum users, please feel free to add other venue suggestions below this one - maybe we can devise a tour of places Aynsley has never played before!