Agree with Kanngarnix. Personally I wouldn't try a heroic with less than 1500 spellpower self-buffed (with Inner Fire, and I agree you should pick up the talent). That's not a rule, but it's where I'd be comfortable. I think your regen is good.
My gear is in a state of "still getting started" so I can sympathize. In general when gearing up to start in both BC and Lich King I worked toward rep rewards, so as to get something guaranteed without having to wait on a drop. It only takes a couple of days to get Revered with the Kalu'ak (the guys who look like
the Lorax) and their mace is, IMO, reasonable for starting heroics and Naxx. So that's a really quick and easy upgrade right there. Wyrmrest has a better mace and the Kirin Tor have a decent dagger. The Oracles have a pretty good starter belt.
And I see you're a tailor. Hopefully you're making moonshroud. The Moonshroud robe and gloves aren't what the Primal Mooncloth set was, but they're nice starter gear. The Wispcloak is also very nice.
Also, I don't see any enchants on your gear except for the spellthread on your pants and the buckle on your belt. I know you may not want to spend gold to enchant blues and greens that'll hopefully be quickly replaced, but even some BC enchants, which you can probably get super cheap right now, would give you a boost.
(edited typo)
Edited, Jan 19th 2009 8:54am by teacake