I will vote for Samsung ML4500. (why older model ?)
Basically 1210 is similar to ML4500 w/ added USB port.
But ML4500 cartidge cost only $59 at CompUSA vs 1210's $79. But then again, if you don't print like hundreds of paper everyday, it makes no different.
(Besides, the ML4500 in my office has been through 10 cartridge for little over a year, and surprise this printer still no sign of retiring.)