Welcome to the boards. It's always nice to have a new victim...er, poster. 
Edges and flaws or advantages and disadvantages have been a part of RPGs for a long time. I don't think that Deadlands and Star Trek are similar just because of that.
Deadlands and Star Trek are similar in that they are both skill oriented games, with a very flexible character creation system (Coda is probably less flexible than Icon Trek, but that's a whole 'nother flame war
). Both have the edge flaw system too. But there are umpteen other games like this, from the golden oldies like Champions to newer one such as Fading Suns.
Greg
"The dreams in which I'm dying are the best I've ever had."
Madworld, Donnie Darko.