Wow, it's rare to find such a high ratio of excelent opinions
Played through dune2 on the dosbox last month and it was pretty good actually.
Since it's only mentioned once in the thread i'll have to beat the drum a little bit more for UFO: Enemy Unknown (or eu X-COM: UFO Defense), probably replayed that game once a year atleast since it was released in 1993. This is a franchise I really hope some talented people pick up very soon, there's a ton of so so copy-cats, with some decent examples in there like UFO: Afterlight (actually a good game not just decent). The rest of the official series didn't really make it on my all time hall of fame.
Dota was a good transition after deciding to quit wow and offers perfectly sized heaps of fun with your friends without the comitment bullshit of previously mentioned game. It's unfortunatly by far the most unfriendly game towards new players ever made.
Among more new games I think fallout 3 is worth a play through atleast even if it got nothing on it's ancestors, bioshock managed to keep me captivated in my least favourite genre (single player shooter, the shit genre that's destroying the entire industry, yes really). Starcraft 2 is the release of 2009 and really hope the gurus manage to deliver the first good rts since starcraft 1! (well excluding broodwar ;p)
I could probably go on all day but let's not (I think I need a blog!). The consoles can really not be completly neglected though, picking up an old n64 with all zelda games is highly recomended.
Lastly, thanks to the devs of KB for going against the mainstream trends and respecting the gameplay.