Focusrite Vs. Presonus, preamp action... Options

[visualmusic]

I'm looking for good preamp for my M-box since the amp provided with the M are so weak.

I've been looking at the Focusrite Platnium Twin Trak ($600), Trak Master ($400), Penta ($400). As well as the Presonus Eurek ($600) and MP20 ($500).

Does anyone use any of these? If so what do you think of the product? Any other preamps any the same price range? Any suggestions would be greatly appreciated.

VM