Since you indicated you have a threadless fork but linked to threaded forks, I'm going to ask if you've researched your braking needs. The forks you posted do not have cantilever mounts on them so be sure your bike doesn't have cantilever brakes. For those forks to work, your bike would need to have a brake that is bolted to the center of the fork crown (or no brakes if it's a track bike). If the brakes are attached to the two fork tubes, the forks you linked won't work.

Dimension makes a broad variety of replacement forks, both threaded and threadless. I have one on my bike and it's a pretty nice fork. It's a little skinny for my over-sized tubes (aesthetically speaking) but functionally I love it.