Should I have waited to reraise

[redsoxsox]

I felt someone was on trips and I needed to make my move on the turn, but I was given the chance of a seeing a cheap river card to fold if the board paired. Heres the hand
PokerStars No-Limit Hold'em, $0.25 BB (8 handed) converter

BB ($9)
UTG ($10)
UTG+1 ($28.85)
MP1 ($30.30)
MP2 ($10)
CO ($27.65)
Button ($7.95)
Hero ($15.65)

Preflop: Hero is SB with 7[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/club.gif[/img]. UTG posts a blind of $0.25. MP2 posts a blind of $0.25.
UTG (poster) checks, UTG+1 calls $0.25, MP1 calls $0.25, MP2 (poster) checks, <font color="#666666">2 folds</font>, Hero completes, BB checks.

Flop: ($1.50) 6[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(6 players)</font>
Hero checks, BB checks, UTG checks, UTG+1 checks, <font color="#CC3333">MP1 bets $0.25</font>, <font color="#CC3333">MP2 raises to $1.25</font>, Hero calls $1.25, BB folds, UTG folds, UTG+1 calls $1.25, MP1 calls $1.

Turn: ($6.50) 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, UTG+1 checks, <font color="#CC3333">MP1 bets $0.25</font>, <font color="#CC3333">MP2 raises to $3.25</font>, <font color="#CC3333">Hero raises to $8</font>, <font color="#CC3333">UTG+1 raises to $27.35</font>, MP1 calls $27.10, MP2 calls $5.25 (All-In), Hero calls $6.15 (All-In).

River: ($83.85) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players, 2 all-in)</font>

Final Pot: $83.85

Results in white below: <font color="#FFFFFF">
UTG+1 has 7c Jc (one pair, fives).
MP1 has 6h 6c (full house, sixes full of fives).
MP2 has Ad 9s (two pair, aces and fives).
Hero has 7s 4c (straight, eight high).
Outcome: MP1 wins $83.85. </font>