Just get a new card and save the CPU/Mobo money for a future upgrade.
That 2500K is going to perform just as well in gaming as anything else you can get with your budget. Since AMD quit trying in the CPU market, Intel has had no reason to dramatically surpass Sandy Bridge...and they haven't. I seriously doubt they do next year either, but that will be the first time you should even consider upgrading the CPU IMO.
If you need a new GPU really soon for a new upcoming game you might be excited about, I would advise a 7970 for $299 (less after rebate) or a 7950 for $199 (less after rebate) both options also come with three free games from AMD's Never Settle Gold Tier.
The prices fluctuate almost daily on these cards, so it may be slightly higher than what I quoted, but you shouldn't have to wait long to get them at that price.
The reason I recommend AMD right now is because the bang for your buck is far greater than what Nvidia is offering from their 700 series, which is seriously overpriced.
If you want to splurge on the biggest and the best, reviews are supposedly hitting at midnight for AMD's 290X, which is expected to outperform both the $650 780 and the $1,000 Titan. It is rumored the 290X price will be between $550 and $650.
Even if you are only interested in purchasing a Nvidia card, you should at least wait and see what the 290X launch does in regards to making Nvidia lower the prices of their 700 series.
If you aren't needing a big performance boost for BF4 or whatever else comes out for the rest of this year, I would just wait until next summer/fall for the 20nm process cards. --- CMStormtrooper / SLI GTX 680 / GIG z68 / firstname.lastname@example.org / 8GB RAM / 256GB+128GB Crucial M4s / AW Optx AW2310 120hz for FPS/ U2713HM 1440p IPS for all other games
Not really. I doubt you'll run into a game you can't play. You just wont be maxing most games.
Seems fine to me.
I completely upgraded recently and the PC I had before was just fine, and much worse off than that.
Wait another year or two. I mean you could get a way better card for $200, everything else is fine. But if you hold out another year or so you'll get a much better card for the same price and be set for awhile.