Not sure how many people there are here who even know what Stealth Inc is, but (at least in PAL regions) the "Ultimate-est Edition" is on sale on PSN at the moment - in NZ it's $11. This includes Stealth Inc 1 & 2, plus both DLCs for 1. It's a great game IMO! :)
I'm not hugely enjoying the "Teleporter Chambers" DLC, but the "Lost Clones" one seems great so far.