Hi guys, I'm looking to get into IDPA shooting in the new year. After doing some research I've decided to get a new pistol for it, since all I have now that I could use is my 1911. Also I think I would be more competitive in the SSP class. That being said, what should I get??

A list of pistols that I'm interested in. I like metal guns but not a must. Prefer 9mm, have a 600 budget
CZ 75 SP01 (not sure if its IDPA legal)
EAA Witness (same as the CZ but without the full length dust cover)
XDM
M&P Pro
Glock 34
Or??

Any suggestion is welcome as well as personal experiences, thanks!