Do you play any other games, or are we just considering the best spec for TS?
For TS, an i5 is well suited for the job; an i7 doesn't bring much to the table despite the price hike. Go for an Intel CPU rather than AMD though, you'll pay more but get more. A CPU with the 'K' suffix means the multiplier is unlocked, so it can be overclocked. Great if that's what you want to do, but not something that's essential. The Skylake platform is quite exciting---and this is where we all like spending somebody else's money---as it supports the latest M.2 interface for SSDs, Wi-Fi cards and lots of other cool techie toys.
On the memory front, 8 GB of RAM should really be considered the starting point for a 64bit system, so it wouldn't hurt to double that if possible.
A G-Sync monitor would be a great addition, but that chews up 25-30% of your budget; GPU wise an nVidia 960 hits the sweet spot--anything above that offers little appreciable gain in performance/quality. With the release of the 10 series GPUs though, the prices of 970s and 980s has fallen so if one of those fits in the budget there's no reason to go a little OTT. Whichever GPU you get, go for 4 GB of vRAM to be able to push the anti-aliasing up comfortably. If you do source a G-Sync monitor or decide to get one later then having that vRAM is (I'm led to believe) pretty much a requisite.
Having been to a well known computer retailer this evening, they recommended getting a custom build job
PC World, and they suggested going to PC Specialist?
Does them no harm to recommend PCS, they still get their cut
One thing to be wary of, and I've only just spotted it whilst looking at the PCS configurator, make sure that whatever you go for has a PSU with the grunt to drive all the sexy bits you may get as hard and as fast as they can go---in other words, the 350W unit which is the default at PCS isn't what you want. Doubling that figure brings you into the right area, and the more the merrier in this case*. Moral of the story- if in doubt over a spec ask in here or better still in a hardware forum to help you cut through the jargon and spiel.
*The case, like the PSU, is an item we all tend to overlook when evaluating how good for the job it is. Far too many *gaming* cases look the part but wall woefully short of the mark because making them look like Darth Vader's head and adding cool lights/windows has taken precedence over making them thermally efficient (gaming:- you're gonna be pushing hardware a fair bit, it'll produce heat, you want that heat out of the case ASAP) and roomy enough for further expansion. Little touches, such as nice trunking for cables which not only keeps things tidy but also aids air flow as the air isn't battling to get round those cables to get to where it's needed. aren't as common as they should be but are definitely worth looking for.
Now for the big question....what's stopping you doing the build yourself?
A self build project isn't hard, and you're then totally free to shop around and get the bits you want at the best prices.
