Spells usually take a swift, immediate or standard action to cast (or more).
I know no spells that can be cast as a move action and this, together with the fact that quickened spells are swift actions (errataed from free as soon as swift actions were born), means that the total number of spells you can cast per round is two (one standard, one swift), except for effects that increase the duration of your round (e.g. time stop, Belt of Battle)
Nothing allows the wizard to spend his movement doing something magical instead, so that time is usually spent drawing wands or scrolls or actually moving.
Conversely, a wizard who can't take full round actions is not hampered at all.
You, as an abjurant champion gish, can still cast one (swift/quickened) spell per round and make full attacks at the same time.