Need some upgrade or not??

Well an ssd won't be a waste. You can use it in any system you end up with. It'll certainly load your os and maybe your games faster (depending on capacity). At the moment the i5 is a much better buy then the i7 (bang for your buck) but the "new" stuff will be here shortly. You have no problems at the moment - so wait.

k thx for your reply

do you know any good ssd 128gb or 256gb
im look for the best price performance one, or little bit more performance

I will only install os and 3 or 4 games on it

Look through these reviews:
http://www.ssdreview.com/
and pick yourself a winner!  

ah thx for the link  

128gb is enough for the os and a half dozen games.

Performance in real workd use(vs. synthetic benchmarks) among all modern SSD's is remarkably similar.
Today, Intel 520 and Samsung 830 seem to be the most favored for reliability.
Intel costs a bit more, but has a 5 year warranty vs. 3 for others.

A SSD will make your pc feel much quicker in general. Games will level load faster.

Intel ivy bridge is due to launch April 29. I expect perhaps a 10% price/performance improvement.
A good upgrade would be to the 3570K quad.