SLING-BLADE

i have the H50 but i am not getting the performance i wnat out of it,  i have it mounted in a sandwitch of fans ( in a push pull method )
and i still am not seeing very good temps i get between 30c - 38c at ital and i dont even have my i7 920 overclocked.
im not sure but i dont think applyed the thermal compound correctly when i got my new mother board.
what kinda temps should i see with a stock clock i7 920 and what kinda temps should i see with any kinda overclock?

I've water cooled rigs for a while now.  You can spend lots of money buying cheap stuff then not being happy with the performance and then replacing pieces with more expensive, but better quality, stuff.  My recommendation is to start slowly, as you are looking to do.  If your H50 is not performing like you want it then it's going to cost you some cash to get the temps you want.

There are many decent rads, pumps, blocks, fittings, reservoirs, and tubing out there.  As suggested above the Swiftech kit is probably the best bang for the buck for starting out.  I would piece it together myself, instead of a kit, but I've been doing it a long time so it's easy for me to know what is better.

If I were you I would really look at what the problem is with your H50.  You state that you are seeing 30-38C...I'm assuming that's your core temps right?  If so, that's about right in my opinion.  I don't see a problem really.  However, if this is what you are seeing as CPU temps then there is a problem of some kind.  Could be the TIM or mounting and that's where I would start before planning on a huge investment in a separate loop.

Not trying to discourage you in the least, but I just know how much money I've put into liquid.  I have four rigs running right now.  Two of them are expensive liquid cooled monsters.  Both of them have three separate loops with three pumps, rads, etc.  I won't even go into how much money is in these two things, but lets just say on one of the rigs the water cooling components cost more than the MB, CPU, and GPU of the rig it's cooling.  The other two rigs are very good, with top quality components, but the difference is one has an H50 and the other a Mega-shadow.  Both of them work very well and are slightly overclocked.  I usually keep them around 3.8-4.0GHz for daily use.  The air cooled Mega beats my H50 by about 2C under load, but it's much louder.  The H50 rig runs quiet and cool and I like it a lot.  I will always recommend an H50 from here on out unless someone wants to really get into liquid cooling and has the cash to do it right.

I will say this:  the two monster rigs are absolutely outstanding at keeping my i7s very cool at clocks ranging from 4.2-4.4GHz.  My H50 does okay at those clocks, but naturally the more expensive ones put it to shame when it comes to high clocks.  If you are not going to really extreme OCing then fix your H50 and drive on without the expense.