Oh man, it's been years since I watched any new StarGate material.
Love the original movie. I got the first bluray release of it and am actually considering getting the newer one since the first one is pretty uneven.
Some footage looks amazing ( like when they're out in the desert) and some looks pretty shit and grainy as hell (mostly darker scenes inside temples and such).
At one point I owned the first three seasons of SG-1 on DVD. Always meant to watch the rest of it, but it's such a long show that I never got around to it.
Atlantis, I loved too. Especially how some episodes really felt like they belonged in some more hard sci-fi series like Star Trek.
Again, never watched until the end.
Finally, I have yet to watch a single episode of StarGate Universe, though I keep hearing good things about it.
I'm a bit hesitant to start it without having properly watched the other shows, though. :/