I may be interested if there is still room. I really want to play an "effective blaster". I was considering the whole Master Spellthief & Red Wizard circle magic ideal to jack up the CL on everything, though without the nodes as I don't have those books and it was confusing trying to figure that out. Yes I know being a blaster gimps me compared to the other casters but if I throw enough broken stuff at it I think I can keep up, and provide the party a source of damage to end the fight after they have taken absolute control of it.
An Ultimate Magus build might work well as a blaster. Specialize in Sonic & Force effects, tack on fun stuff like Explosive Spell on large AoEs, and use one side's slots to power metamagic on the other. Something like Sorc 1/Wiz 4/UM 10/Incantatrix 5 for some extra metamagic awesome. Use Practiced Spellcaster to fix your progressions.
You might also be able to do something really crazy with a sorc with Arcane Preparation and Knight of the Weave into UM... use the lower-level slots in KotW to power metamagic. Because of how the KotW CL works, it will always be higher than sorcerer, so you could do Sorc 6/KotW1/UM10/Full-casting PrC 3 (UM will progress KotW casting 7 times, granting you 6th-level spells). You only lose 1 sorc level, so you still get 9th-level spells. You get Cha-spellcasting on both, so you can free persist stuff if you want, or at least free quicken or twin.
EDIT: You can also get into KotW with wizard if you take the Spontaneous Divination ACF or the Alacritous Cogitation feat, which gets you into stuff 1 level earlier. This also allows you to actually use the "Expanded Spell Knowledge" class feature...
EDIT: How about Evoker 3/Master Specialist 2/KotW 1/UM 10/MS +4? You'll have a CL for evocation wizard spells of 24, for KotW spells of 36, and you can add Miracle to your spellbook at 19th level.