Much as I prefer to avoid paper, sometimes you just need hard copy. And at those times, you don't want to wait. Samsung's ML-2510 laser printer cranks out 24 pages per minute, so there's very little waiting required. Buy.com has the ML-2510 on sale for just $44.99 after a $50 mail-in rebate. These are new units, not refurbs, and shipping is gratis.
Although CNET refers to this as a "workgroup" printer, to me that implies an Ethernet or Wi-Fi interface. The ML-2510 offers neither: It connects via USB or, if you're working with older machines, a parallel port (remember those?). On the plus side, it's a very compact model that offers a 250-sheet input tray and compatibility with Windows, Mac, and Linux PCs.
A laser printer for $45 is a pretty sweet deal. A fast laser printer for $45 is just plain awesome. If you're looking to outfit a home office or small business for volume printing and don't mind waiting on a rebate, click no further.