TOTALLY up for this. Currently, all but the most basic phasers look ugly as sin, and even the basic ones aren't that great. And don't get me started on all those stupid generic weapons found elsewhere in-game...
The best thing about this would be the sheer variety available. Consider the different models of Type-2 hand phaser alone:
TVH (retro homage to the TOS phaser)
TUC assault phaser
DS9/VOY 'dustbuster (curved handle)
How cool would it be to have any of them in-game? It's like my general rule with STO - anything that gives the players more choice and more options is only a good thing, IMO.