I probably would have bet about 300. I like 3/4 pot bets. Half pot bets don't get much respect and offer good odds.

Your really don't want to see any overcards, so I may have even potted it here.

I like to consitantly bet 3/4 -1 half the pot so people can't tell my continuation bets from my made hand bets. I pick my bluff spots pretty well, so if I bet 3/4 and I win half the time I am money ahead.

Dan Harrington recommends 1/2, but people will call with just overcards in my opinion, especially early. That makes turn play very tricky.