Hi Ondo! Just like you, I'm also new here at SZ. Actually, this is my first time to post a reply. I have been visiting this forum since 2002. I really enjoy the information I read from the members. You'll also get some laughs to funny comments around here. I love it!
Anyway to answer you question, Tyros is w/out a doubt a better KB of the two, in every angle. But if your budget only allows for a PSR3000, go for it! This KB sounds great! Just read the comments of the members that own a PSR3000, that might help.
Blessings!
mcmc