Hope this isn't too late....
I've got a set of 5100's.....
Probably the best looking speakers on the maket!
Can go really loud without distortion
They look great
Like most PC speakers, they lack in midrange and maybe are a little too bassey
I've had to replace mine twice (the online store I bought from only allow direct replacements! -Damn them.) as the last two sets spontaneously stopped working for no reason at all!
If I was to buy my speakers again, I'd buy the 215s. They don't look so good, but they probably sound better because of the midrange. Depends if you listen to a lot of music on them I suppose.