Kile's a good editor. Alas, I can't give you links since I haven't made more than 5 posts, but a search on google for "kile latex debian stable" throws up some seemingly reliable sources. The most recent is still "unstable", but the one I've got on my box (1.7.1) does everything I need it to. I think the newest version is 1.8.1. Hope this helps.