OK, thank you all for the answers!
@amphirion - I follow Aaron's site religiously. Growsundews.com was the first place I read about how to get rid of humic acid buildup. My problem is that it keeps coming back. I would think that it would get better the more I top-water the plants (and therefore flush the media out), but no dice. Perhaps it's happening precisely because I'm top-watering them so much.
@Soopaman - Nice dews! I believe mine will begin to color up nicely once the photoperiod gets up into the high teens (as I mentioned, I'm only at 11 hours right now... I wanted gemmae from my pygmies!). As I've read, more light allows plants to tolerate more water. Perhaps this is why these Drosera are so annoyed - I changed the light on them but didn't really change the amount of water they were getting. Hmm....
@NaN - So everyone says it's too much water and here you come saying it's not enough water! Lol! Anyway, about the temps - yeah, they're pretty high. I'm working on getting them down. I'm leaving one 'flap' on the side of my grow rack open so my cooling fan can draw cooler air into the rack. This has kept temperatures a few degrees cooler. It sounds like you give your plants way more water than I do, and they look happy as clams. How many hours of light do they get daily, or do you grow them outside?