Not a lot of great stuff to choose from, since some of the SSw's best infantry are ballistic, but I digress.

-Hoverbikes
-Fenrir BA (you'll need SOMETHING to clear out those pesky infantry, and one AnP is better than nothing. Better start wading into melee once your damage goes to 1, though)
-Joust Tanks (could be worse)
-Laser Teams (they're actually viable now)
-Mjolnir (paper mache defense, but 4 energy on a dirt cheap 'mech)