Ahhh, that's where I'm getting my logic from. I've played RM2 most of my life (though most of my gaming days were decades ago), and this new campaign I've joined is my first foray into RMSS. Even in RM2 though, none of our players liked Magic much, so my memory on how magic worked back then isn't the best (we used RMC4's One-Roll-Spell-Resolution chart). But I was right in thinking you couldn't cast a spell and attack in the same round, at least in RM2/RMC's way of doing spells.
K, just me adjusting to RMSS. Go about your normal business...
-shnar