I'm kind of surprised not to find a Lego thread here, so I'm starting one.
Mine is a sad story: I used to own the amazing Black Seas Barracuda (6285), King's Mountain Fortress (6081) and Black Knight's Castle (6086). Now that my parents are moving out, I looked for those great sets and I found them gone!
Not all is lost, though. I've still got a couple of small but nice Town sets and a couple of Technics, plus a wealth of mini sets such as veichles, a bucket and a building case with random surviving bricks and minifigs in it.
Here are the Town sets:
Holiday Home (6388) and Derby Trotter (6355), both issued in 1989. As you may notice, sadly some of the original bricks and accessories are gone and I had to substitute them with similar ones. I plan to improve the diorama with the small platform that's missing on the right (already ordered it through ebay) and possibly other details, a car maybe.
And here's the more badass Technic sets:
Luckily those two are complete and I still have the original boxes. The car is an alternate and smaller model from the great Barcode Multi Set (8479). This set is driven by a unique programmable bar code reader and powered by a 9v motor. And then we have a Pneumatic Log Loader (8443). Both issued in 1996-1997.