Hm, maybe you were dreaming of Gnucleus! Right now it has the best download resume I've seen so far (be sure to get the newest version). You can re-search for new results and it groups either by name or file size (you decide). The UI takes a little getting used to (and I wish it had LW's file type selection to limit searches), but I managed to download an 840 meg file over a period of a few days from about 20 different servers - and it actually worked when done!

I doubt *any* of the other G-net client out there now could have pulled that off.