I agree with the above posts, go something like:
1 - Barbarian 1: Combat Reflexes
2 - Sorcerer 1: na
3 - Sorcerer 2: Dodge (or Combat Expertise if Int high enough)
4 - Sorcerer 3: na
5 - Sorcerer 4: na
6 - Sorcerer 5: Mobility (or Improved Trip if Combat Expertise taken)
7 - Sorcerer 6: na
8 - Eldritch Knight 1: Spring Attack (or Improved Disarm if Trip taken)
9 - Eldritch Knight 2: Blind-Fighting
10 - Eldritch Knight 3: na
.....
This gives you BAB +7/+2, Spells as an 8th Level Sorcerer, average around 44 hp (no Con bonus included),...a pretty strong "Fighter/Mage" setup using only
the SRD for creation. Using a Halberd as the weapon, it'd be nasty if you
get at least 13 Int and go Combat Expert path.
Just my 2cp,