You're in luck (maybe). It looks like your model is partially supported
by a free driver--a relative rarity for Lexmark.
Even more, Lexmark itself apparently supplies a driver for it, though it looks like there might be some difficulty getting it working, as explained above.
As for other hardware, your might start with the LinuxQuestions HCL
. I already gave you a link to linuxprinting.org, and for scanners, check the SANE
page. Your distro of choice should also have a hardware compatibility page somewhere.
Finally, be aware that there are at least two proprietary driver companies out there. Turboprint
offers support for some Canon, Epson and Brother printers (no Lexmark though), and VueScan
suppports a host of scanners. There may be more I don't know about.