Now that I am not limited for space, I think a big tower with plenty of scope for future upgrades, and yes I am thinking of water cooling as much as possible. I am not sure of going SLI though, is there a real need for it? I can see the price is going to go sky-high!!! BANG goes getting a newer car next year! It's a good job I'm not married anymore, as the ex would have gone spare!!!!!
Ref Monitor? should I go just monitor or HD TV? and I am thinking about 22"/24" as I am using an acer 19" at the mo and it would be nice to go abit larger. Then again I need everything, as it's a complete setup needed.
SLI would be useful (probably necessary in fact) if you were thinking of going for a 4K display, but I think it's too early to be considering 4K anyway.
If you'd like a large case with plenty of space for future expansion, and given that you're considering water cooling, I'd recommend the Phanteks Enthoo Primo. It's got rave reviews:
https://www.youtube.com/watch?v=rg_DzdHGgN4
In terms of the monitor vs TV debate, it depends on the TV. Some HDTVs suffer from ghosting and lag, and some can't display as high resolutions as a PC monitor can. So long as your TV is reasonably new and is full 1080p then you should be fine, particularly if you've used it for console gaming and not noticed any lagging/ghosting. If you're interested in a monitor, here are some that are worth considering:
YOUR BASKET
1 x
AOC G2460PG 24" Widescreen G-Sync 144Hz 1ms Gaming LED Monitor - Gunmetal £329.99
1 x
Samsung S27A850TS 27" Widescreen Ultra Thin LED Professional PLS Monitor - Matte Black £319.99
1 x
BenQ XL2430T 24" TRUE 144Hz Widescreen LED Monitor - Black/Red /w Flicker FREE Technology £299.99
1 x
BenQ XL2420Z 24" TRUE 144Hz 3D Vision 2.0 Widescreen LED Monitor - Black/Red /w Flicker FREE Technology £289.99
1 x
Dell UltraSharp U2414H 24" Widescreen LED Slim Bezel Monitor - Midnight Grey £199.99
Total : £1,479.43 (includes shipping : £32.90).
I've stuck one 27" monitor in there because it is such a bargain at the moment that it is certainly worth considering. You'd get a higher resolution with the 27" Samsung at 2560x1440, it just depends whether you want to get a monitor that big or not.
If not, the BenQ monitors are great gaming monitors, though they are quite pricey for 24" displays. The Dell Ultrasharp is probably more of an all-rounder. It is an IPS panel, meaning it will have better colour reproduction and viewing angles than the BenQ monitors, but it may not be quite so suitable for gaming. That's not to say it will be bad, I've got a Dell Ultrasharp and think it's a great monitor, but it won't have the 1ms response time of the BenQs.
The final option I've put in the basket is a G-sync monitor. If you don't know what that is, it's a new technology from Nvidia that syncs the monitor refresh rate to your GPU, eliminating screen tear and input lag. It's a bit new though and better monitors that support it will likely come out next year. Plus, currently G-sync enabled monitors only have support for one input via Displayport, so you wouldn't be able to connect anything but your PC to a G-sync monitor.