Nice work Jon! My guess is that it's a dwarf nova of some sort, very blue. Check these out:
http://www.galaxyzooforum.org/index.php?topic=276258.15
My shot last night showed no sign of reddening at all - a classical nova of this magnitude and in that position should appear reddish in my shots. That is, at mag 10.3-odd, it has to be either a long way away and/or subject to extinction due to dust. Either (both!) would produce a reddish object in that position. Therefore it must be this side of the dust and not as intrinsically bright as a classical nova - ie a dwarf nova or some other cv. Or not LOL!
Edit - very similar to the recent PNV in Hercules, now confirmed as a dwarf nova, with superhumps. Spectrum here:
http://quasar.teoth.it/html/spectra/...12+2520317.jpg
Cheers -