What video games would you suggest?

Ok, so I am constantly on the road with a 1.7GH laptop with 512RAM and a crappy onboard card. I’ve been playing “Heroes of Might and Magic III” for the past couple of months, plus some of these casual free-download games before that. But I need something to get my mind off things and so it must be addictive if possible.

So what are the great games out there? What is everyone playing? I’d obviously prefer older games so they can run on the laptop, but I’ll set up my normal PC in a couple of weeks, so new ones would do too. The problem is I haven’t found anything that seems worthwhile in the shops.

Things I’ve loved in the past include various Turn-based strategy games (like Civilisation or the Heroes series) and various RPGs (again, the M&M series but also Gothic and NN1). As I mentioned in another thread, my favourite game of all time was Frontier: Elite 2, which is more of an RPG than a space sim. And I used to love Adventure games back in the “Monkey Island” era, but not newer things like Syberia and so on. I’d also go for a decent, highly addictive race game or something (I ejoyed NFSU and Flatout 2 for a while)