> The cheapest Postscript compatible I found in the US
> was the OKIDATA B411d 91659801 at 4169 plus $22
> shipping and handling.

That's only marginally more expensive than the starting price of such devices in the EU.

> What would you recommend?

The things I find important, apart from PostScript compatibility of course, are networking capability and that it runs some file server so that I wouldn't need a driver for the scanner part of the MFP.

> a lot of laser printers come with very little memory
> (like the Oki I mentioned with only 64MB).

Yes, the Lexmark X203n I'm looking at also comes with just 64 MiB. You mean that's not sufficient?

> What's a good compromise between price and features?

Sorry, I'm a complete layman when it comes to laser MFPs.