Adam K DeanCurrently on a bit of an extension trawl, to think that I've lived in the dark ages for the past year or so.
This one a lot of people will probably already have but here to go, Regular Expression Tester extension - so you can check your regex as you write it. Amazing.
Get it here:
http://visualstudiogallery.msdn.microsoft.com/bf883ae3-188b-43bc-bd29-6235c4195d1f
