I know there is the Reti but could someone point out some other good openings?

I want to use it as a surpirse at a U1300 tournement.

I really should win this easy considering i beat 1800's often using QGD/QGA with white.

 If you can beat 1800s with QGD/A, why don't you want to go with that when facing someone who's not even 1300? Come to think of it, if you can beat 1800s, what are you doing in an U1300 tournament in the first place? You're not a sandbagger, I hope.

 No im not a sandbagger, I just dont play them in rated games. The chess club i go to features a few 1800s and a 2100 who i have never played. Im rating is 990 but only because of 1 tournement.

is it possible to suprise an U1300? I wouldnt think they have enough of a feel for what is sound to actually be suprised by anything...

Here are the names of some 1.Nf3 openings I found.

ECO: A34 English Symetrical 3 Knights exchange or Double Fianchetto (Hedgehog also 8.Qxd4..d6) (Geller 7.Nb3)

ECO: D45e Semi-Slav..Semi-Slav Accelerated Meran..(Alekhine variation, Capablanca..)

ECO: E15p Queen's Indian: Nimzowitsch (5. b3 Bb4+ ..) or 7. Nc3 Ne4 8. Bd2 Bf6 9. Rc1 ..

ECO: A29 English: Four Knights, 4.g3 ..

ECO: E68f King's Indian: Fianchetto, Classical (8.e4 exd4..)

ECO: D11h Slav: 4. Qb3

English Symetrical..2. Nf3 Nf6 3.g3

Just some..I don't know if you know what openings I posted or not. (granted most are just variations..)

Hope you win your tournament mate.  

Jeremy

I suggest memorizing the entire Opening Repertoire For White According to Kramnik series.

In an under 1300 tourny the only surprise will be if you guys don't start hanging pawns and pieces by move 6. 

In an U-1300 tourney, EVERY opening is a surprise opening.  Confuse the opponent?  He's already confused, or will be soon - that's why he is in this section!

Seriously, you will win quickest if you play what you know best.  "Play the board, not the opponent!" is good advice.  It means you should play every game as if your opponent is the World Champion and this is the only game you will ever get to play him.

If you play the QG against your strongest opponents with success, why on earth would you even think of abandoning it against weaker players, especially for a gimmick you really don't know much about yourself?  The more you mess around in unfamiliar waters, the better the chance your fish will turn into a shark, even if by accident.  Go with what you know!

no reason to bother studying any lines for that. they will deviate straight away

There's also the King's Indian Attack, instead of a Reti with c4 vs. ..d5, White prepares e4 with d3 and Nbd2.  One middlegame idea would be securing a space advantage with a later e5 push, which opens up Bg2 and Nbd2->e4, makes for some nice attacking prospects.