The last TSR game before WotC stopped calling TSR a subsidary, Alternity, presented species that were similar enough to humans or existing Sci Fi (or Fantasy) species, as well as a couple that were truly alien. I think HARP SF also has a good mix, and while Blood Talents were dropped in favor of Genetic Adaptations and Subspecies, it keeps a lot of the flavor the same.
My current group in which I am currently playing Pathfinder, running World Tree as written (for some of the same people), is looking toward HARP SF as the next Monday night game. I admit I have to read a bit more about the psionics in particular, but except for some abilities I find the Madji pretty close to human.