A) Spell Resistance. What equipment should I start saving for (or even buy Right Now) to help me get around this?
B) Grappled. If I get grappled, I am entirely screwed. Heck, I'm not even proficient with a decent slashing weapon.
For the second, I have a partially charged wand of Fist of Stone. It may take me two rounds in a grapple to get it out and use it, but once that's done I should be semi-OK against a nonspecialist grappler. It's also a nice backup bludgeoning melee weapon, especially with Weapon Finesse already available.