What motherboard should i get with the Intel CPU Core i7 3770K !?

From what I've read and seen, ASRock z77 extreme4 is a great motherboard that delivers the best bang-for-buck. It will support your processor and (I'm guessing you have 2x8GB memory modules) you'll have space left for upgrades in the future. If you have more $, you could look into some MOBOs from ASUS as well.
Oh, and I recommend checking wether your ram modules are supported by this motherboard. You can do it here:
http://www.asrock.com/mb/Intel/Z77%20Extreme4/?cat=Memo...
OR if you have Corsair memory, then I suggest checking this:
http://www.corsair.com/learn_n_explore/

Thanks for the reply,whats the difference between the whole z77,z68 etc.!? Is it just features!?

Here, this should explain everything:
Just hit "find" and type in "z77", the first result will be a chipset and their feature comparison table.
http://en.wikipedia.org/wiki/Intel_chipsets

Well, I'm pretty new to computers, but from what I get, Z77 and 70-series as a whole was optimized for ivy bridge or something like that and 60-series for Sandy. I'm not saying this is true, it's just my guess, because z77 came out around the same time as IB, a tad bit prior, I might even say. IB is compatible with z68 as well as z77, but as far as I know, a BIOS update is required or something like that. Anyway, my friend went with a B75 chipset for his IB build, because he just wasn't going to overclock anything and by going with that particular chipset, he saved a lot of dough.