If all you need to print is black and white, laser is definitely the way to go.
I have that lexmark (e210?) that everybody bought as a hot deal like two years ago.. I thinkI paid about $100 for it... all I ever print out is things like mapquest driving directions or 5-10 page documents every so often... the nice thing is, I only power it on about once a week, but it just takes ~15 seconds to warm up and then it cranks out pages at 12ppm and I'm done.
Back when I used an inkjet the damn thing would always be clogging up or ink drying out, or it'd need to be cleaned, it would take forever to print, etc, etc, etc. I've never even changed the toner cart in this laser printer, it is fast as hell, and very dependable. Toner *is* expensive, at about $70 (for this model) for a replacement cartridge, but it will easily last 4 times as long as an ink cart, and give consistantly good results.
If you have a choice, and you print less than ~50 pages a week, I'd recommend buying a laser where the paper tray is integrated into the printer and it holds the paper inside, rather than one where you have the paper sticking out the top/back. They usually take up a little less room that way and if you use it infrequently like I do, that will reduce paper curl etc and is just generally a nice feature to have. Also, don't rule out an older used laser - espeically the OLDER HP models, those things last freakin forever. I had a "personal" HP laserjet that had printed something like 50,000 pages, and I have seen more than a few Laserjet 4si printers (those are the big ones) that had more than 700,000 pages on their counters.