5/10 - too aggressive?

[Xhiggy]

Hello all,

I'm still fairly new to no-limit and I'm not sure how out of line this hand was. villain was very solid up to this point, and almost certaintly a winning player. he probably saw me as reasonable and more solid postflop. I haven't played a hand in a couple orbits, and the only major one I was involved in recently had me losing my stack with a set against an overset. It was far back enough though that I'm confident the villain didn't think I was on tilt.

Comments on all streets appreciated. Thanks,

Party Poker No-Limit Hold'em, $ BB (6 max, 5 handed) converter

Hero ($1246.25)
Button ($1204.75)
SB ($843)
BB ($1854)
UTG ($431.5)

Preflop: Hero is MP with A[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/club.gif[/img]. SB posts a blind of $5.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $30</font>, <font color="#CC3333">Button raises to $70</font>, <font color="#666666">2 folds</font>, Hero calls $40.

Flop: ($155) 5[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/spade.gif[/img], 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $125</font>, Button calls $125.

Turn: ($405) 6[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $200</font>, <font color="#CC3333">Hero raises to $500</font>