I did post a little while ago about upgrading the graphics, and I've realised the more important need is upgrading my RAM.
My current system is an MSI P35 Platinum board with a Q6600 mildly overclocked to 3GHz. It's working fine - I added a C300 SSD a little while ago and general usage of W7 HP has been great
However, I'm working on some very large photo stitches (half a gigapixel) and all those layers and 16bit TIFFs mean the installed 6GB just isn't enough.
Also, I feel an upgrade to 8GB still wouldn't be enough and as that's the limit of what the P35 supports, I'm down the new motherboard route.
Then, I realise that I'll probably have to ditch my ram as it's DDR2 and all the new stuff runs DDR3.
If I get a new motherboard and RAM, I guess it'll be a new chipset so I might as well change the CPU. I suppose a 2500k unlocked makes sense to OC a bit.
Graphics (currently an ATI FireGL 7700) is great for quality but not exactly superfast so could pop in a new GPU for the odd gaming, but it's a lower prioirity.
So, based on the above and the need to have more than 8GB, what would you suggest? I can spend some money on new motherboard, CPU, RAM (and optionally graphics). Budget isn't really an issue, but I mainly want to improve PS performance and the ability to work with large files.