I thought I'd give this a try.

Apart from the bluff-raise being too small, what do you think?

Opp is fairly well known to me (500-odd hands). Lays down frequently to aggression, shows down crap, that sort of thing. ( W$@SD 32%).

I did expect think there was a large chance of a fold if he didn't have an A.

No Limit Hold'em CryptoLogic ($50NL)
Converted by FTRConv
6-handed

StacksSB: $41.10
Hero: $53
UTG: $49.50
UTG+1: $55.45
CO: $54.80
BTN: $78.25


Pre-Flop: Hero is BB with 5 4
UTG folds, UTG+1 folds, CO raises to $2, BTN folds, SB folds, Hero calls

Flop:($4.25) A A 7 (2 players)
Hero checks, CO bets $4, Hero raises to $12, CO calls

Turn:($28.25) 6 (2 players)
Hero checks, CO bets $16, Hero raises to $39 and is all-in, CO calls
River:($106.25) 8 (2 players)

Final Pot: $106.25