Looking at upgrading my GPU from to a GTX760/770 and keeping the old card (GTX660Oc) to run PhysX, but my motherboard (ASRock Z77 Pro4M) is rather limited with only one PCIe3.0 slot, plus the lack of free room both on board and in the case to fit an additional GPU.
I see two options:
1: Replace motherboard with another Z77 chipset so I don't have to replace the CPU (i5 3470 3.2/3.6ghz), approximate cost of $190 AUD for the mobo I currently fancy (MSI M-power LGA1155), plus cost of an ATX sized case. So round about $280 or less if I shop around. This seems to allow some decent expansion options in the future (i7 3770k for overclocking fun and SLI another card maybe?), but it's an obsolete socket, only offering so much longevity.
2: Upgrade to Haswell CPU, motherboard, case and grab some faster ram. A quick check of local prices brings that to just over three times as much outlay, or a third more than I payed for the rig in the first place! But it shouldn't need attention for (I hope) a good couple of years?
Tl;dr: Spend a bit now and and a bit more later when required or spend lots and lots right meow?
Also, I've only recently got back into the hardware side of things, so I probably know a lot less than I think. If someone smarterer wants to correct me, or save me squillions, please do!
Edit: Full system specs as it stands:
Intel LGA1155 i5 3470 @3.2/3.6ghz turbo boost
AsRock Z77 Pro4-M
Gigabyte GTX660oc 2gb
16gb corsair ddr3@1600mhz
Asus Xonar DX PCIe sound card
Corsair HX650 modular PSU
I think that's it...
Edited by Smittiferous, 31 August 2013 - 07:05 PM.