Silk and I play Magic on-and-off, starting during Onslaught block. We'll get into it for a while, then stop playing only to start up again a year later or so. We only play casually though, as we don't like having to keep up with the newer sets as old ones get shifted out; if one of us wants to make a deck around a newer mechanic it'll be out of curiosity rather than obligation.
Deck-wise, I've got a U/B Dimir deck that I rarely use because it annoys people to hell and back and rarely wins anyway; a B/W Orzhov deck that I love to play, and a B/R Madness/recursion deck for when I feel more aggressive. Thinking of getting an Esper deck in the near future, as it seems like it can do lots of cool stuff. I'm primarily a control player, with a heavy preference for Blue and Black: rarely does one of my decks lack both of them.
Silk is more of an aggro kinda guy who plays mostly Green and White. He's got a mono-White soldier/pump deck, a mono-Green accel/aggro deck, a G/W Selesnya token deck, and a W/R Boros deck.
Also, any thoughts on the recent rules changes? The combat-damage-no-longer-using-the-stack thing brought a significant power-down for my favorite deck with it: I can't get card advantage with Orzhov anymore by blocking to kill an attacker and sacrificing my blocker for an effect or using a temporary exile effect. My Ghost Council in particular is much less powerful now, as it utilizes both those mechanics. Hence my urge to get a new deck that I can utilize to its fullest tricky potential without using as many combat tricks. Anyone else affected by the rules changes like that?
Fortune Favors the Bald
Slate: 9x/6x Lord Knight
Basalt: 9x/50 Sage
Glass: 9x/50 Bard