The spells you take also depend on your mentor spirit and the spell type it boosts.
Going back to attributes and buffing your attributes with magic, actually the lower your attribute is to start with, the lower the force needed to increase it, therefore the easier it is to bind to a Sustaining focus. On that note, don't forget Foci. You won't be able to hide them from astral detection until you initiate enough to get Extended Masking, but they're still great to get at chargen, since the BP cost for binding is so much less than the karma cost during play.
So, if you drop your reaction or intuition (or both) to 3, then you can purchase and bind a (actually, you'll probably want several) lvl 3 Health aspected Sustaining Foci. Then you can cast Increase Attribute, and bind it to that foci, raising your reaction or intuition by the number of hits scored (I think to 2x force I.. don't know the cap here.) Anyway, even if it was only 3, then you've just boosted your Reaction, Intuition, Body, whatever to 6. Pretty nice... until you hit some Background Count... And don't forget the Sustaining focus for Increased Reflexes to keep your extra IPs without incurring the -2 sustaining penalty.
Basically, what you might want to take away from this is, don't neglect money at chargen. Money is awesome. Buy foci, and armor... don't forget to look like a regular guy and not a gunless wizard. Just because you're a living weapon, that doesn't mean that you can't spend cash on gear.