Wait! David is reworking the whole line, both to update them a bit sculpting-wise, and to eliminate the large integral bases!
Unless you love them now, in which case, get 'em, cause they will be gone soon! I've heard the Green Martians are gorgeous, but need a lot of work to get them painting-ready.
I have no Dead Earth minis, but I've got a pile of Bronze Age. Great guy to deal with. I keep hoping he does more gladiators, and I thought I convinced him to do an Arthurian line... Fingers crossed!