Right now I'm going to get the Pilot Metropolitan (Gold, Zigzag, M) because I really can't see anything online wrong with it, especially for $25 (including the CON-50 converter and shipping to Canada from Goulet as per recommendations in this thread). It actually costs exactly the same at the local pen store, but without the CON-50, which is a must for me. Funny thing, my eleven-year-old brother walked in on me researching, and we're going to get one for him too (Black, Plain, M). He's had a Lamy ABC before, which he lost after only about two months of use! It runs in the family apparently.
I think you'll be very happy with the Pilot Metropolitan. I've had mine for almost 2 weeks and it is one of my new favorites. It writes smoothly, looks much nicer than you'd expect for a ~$15 pen, has a good weight to it that does not make it feel like a cheapo pen, and is easy to replace if lost. I just wish the fine point nib was available when I ordered mine. I'm going to wait for that to come out before ordering a 2nd Metropolitan.