I was making the same decision a while ago myself. I have a CZ75 pre-B and had shot my father-in-law's Rami soI had some first hand experience with the make and model. I also prefer HK pistols over all others. hence my dillemma. Price wasn't being a deciding factor for me. I went with the P2000sk fora couple reasons. 1) it was an HK so I knew the quality was there. 2) the biggest facto was the HK fit me better. It fit better in my hand. I actually shoot my P2000sk better than I did his Rami too.
Hold each and see which fits YOU. No fun shooting a gun that just doesn't fit you very well and is comfortable to hold.