yes I do. I have the BenQ 1440p Freesync monitor which is an incredible screen. Freesync/Gsync is a total game changer, definitely recommend getting one of these http://www.overclockers.co.uk/showproduct.php?prodid=MO-113-BQ&groupid=17&catid=948
Regarding your path, you're in quite a tricky position I'd say. While that 290 is still a pretty decent card, you have quite a few options right now which is a little tricky. Throwing a Freesync screen to that 290 as it is will feel like your frames have taken a jump anyway. Freesync has a brilliant way of making the motion and frame feel so smooth, at times it feels like you're actually playing at 30% more fps when you're obviously not.
With Pascal and the next round of cards less than a year away, adding the Freesync might be a good start, but that cpu/ram and card will need to be upgraded at some point as it'll be a bottleneck. You could always get a 2nd 290 with a Freesync screen which would be a lovely boost, quite a powerful setup for less that £500, but you would need to upgrade your CPU, mobo and RAM to really push both those cards.
Or you could upgrade your motherboard, RAM and CPU along with the Freesync monitor and keep plugging away with the one 290 for the time being until the big cards come out next year. That way you'll have the base of your rig there, you wont get a bottleneck etc.
I myself am running MSI 390 crossfire setup on a I7 3770k, it absolutely tears games to pieces at 1440p. Most of my games sit at a 120fps cap that I have enabled, only few exceptions like Witcher 3, GTAV where I can't keep it at 120fps with ultra settings. I still believe, not just because I have that kind of setup, that for your money you get one hell of a bang for your buck on crossfire 290/390 (no need for X models). It'll quite easily match the fastest 980ti/Titan setup out there, in some cases beat it, to me it's a bit of a no brainer as I've had very little issues with crossfire in all the years I've been running various setups.
I have just watercooled my cards, just recently done my first custom loop, it's a wonderful route IMO, incredibly cool and insanely fast.
this is how the BenQ looks and size
You definitely want to get a Freesync screen though, like I said it's a game changer.
Jesus christ that setup is absolutely unreal!!
If you dont mind me asking, what parts do you have in that loop, and how much did it cost in total? Reason I ask is that is what i was actually looking to do a loop, but you haven't included your CPU, which i did not think of at all, and having a H100 myself, i think i would be alright in that regard.
I am in need of a new case, and was looking at:
https://www.overclockers.co.uk/showproduct.php?prodid=CA-205-CS&groupid=2362&catid=1489
I think the extra 290 and a freesync monitor seems to be the way i am edging, i must admit. Although I do love my ultrawide, so i really do not know what im going to do there, maybe dual i really dont have a clue.
Realistically here's my plans, tell me what one you think will be best, or if you can think of anything else, feel free to add.
1) Upgrade to 2x R9 290 and get the FreeSync monitor you linked. Sell my CPU/Mobo and upgrade to a 4690k/4790k and motherboard, and then the case. Dependant on cost, get the waterloop in there. See how i like the monitor and if i dont like, return before 14 days is over.
2) Stay with 1x R9 290, Get the FreeSync monitor, sell Cpu/Mobo and upgrade that instead and wait for Pascal or the AMD equivalent.
3) Eat cookies, take a bath in the money, wait for Pascal and buy the best of the best.
4) Just upgrade CPU/Mobo/Ram and get the Freesync as a second/gaming monitor,
To be honest, i love AMD and will probably always buy the 2nd tier card, 290, 390, Fury Non X etc, and Freesync will be worth it for me. If not the scooter, i think I will get another 290 if budget allows etc.