If you are set on blasting, you may wish to play a warmage instead. While it takes a massive hit in the utility aspect, it can be more fun as you get to spontaneously choose which spells to blast the foe with. Work with your Dm to see if you can swap out spells you don't want for damage spells you prefer to better customize it.
Alternative, the focused specialist and master specialist (complete mage) are likely what you want to consider as well.
I had looked at both the focused specialist and the master specialist. Both seem quite nice.
What book is the warmage in? Sometimes its a pain having every book in front of me, someone mentions something and i spend 30 mins trying to find it, lol