So sony will be releasing collections

What ones are you expecting?

I suspect jak and daxter, R and C, DMC, those are basically givens.

Obviously MGS would be great and the ICO games. I guess silent hill is another.

SotC/ICO is already confirmed, I only ever played them at a friends place so I'll be buying it.
I'd also buy MGS and KH collections if they were put together, although it's too much to hope for a localized KH collection with english FM, FM+ and the CoM remake would be fucking awesome.