Upgrade/Display Advice

[Bann]

I currently have

i5 2500k
8MB RAM
1TB Hard Drive

24inch Monitor
GTX 650 Gfx Card

The motherboard needs replacing, I am debating upgrading to a z97 from z68, which would mean also changing processor to i5 4690k
The SSD needs replacing

I am wondering if I should upgrade to the next chipset and get a new CPU?
If I should get a new gfx card or SLI the one I have already?

I am also debating going to a 3 monitor display setup 3 x 24inch

Is it possible for one of these to be 3d (I know a 3d kit would be required) either now or at a later date, and would it be possible to get my PS4 to display to the 3 monitors?

[Deleted]

Well it all depends for what you use the pc for. Gaming?What games? Pro work? both?
Sli for me at least is never a good idea for gaming, not many games support it well and in some occasions it will be worse and have to disable it.

[Remilia]

For the monitor question.
3D: Yes
PS4: Yes provided it has an HDMI or you use an adapter. You'd be hard pressed to find more modern monitors without HDMIs though.

[Ishana]

For a 3 monitor setup I would recommend a card with a bit more memory. I recently got the gtx 970 which is well worth it's money imo.
(Edit: Even with SLI you would still only be able to use 1GB)

[Gaidax]

That CPU is still good, replacing it is not needed at this point.

GPU is horrible... grab all your cash and toss it a decent GPU.