that may be great but blizzard is an AoE targetable spell, which is problematic for certain folks, while consecrate is an AoE with a center around the pally.

for now, i'd keep two sets of keys. one for the pally, and one for the mage. also, i dont know what kinda mage you're making so... that can be a problem with advice. early on, pallys have the same spells so there's no differentiation needed. what you can do is the following...

since you wont have consecrate for a few levels anyway... prep with blessing of might and devotion aura. run in and auto attack, judge light when its up. while you auto attack, have your mage ready to fireball/frostbolt/arcanemissiles. if mobs start to run, frost nova. if you get an unexpected add, sheep, or just have the pally pick up aggro. leave the mage behind to nuke while in battle. no need for it to keep running around following the pally. besides, a mage would pull aggro faster at melee range.

i'd have the first 5-7 buttons for the pally, the rest for the mage.