I'm in the process of planning out my new ride... I'm thinking Surly Cross Check fixed/singlespeed flip flop, but I think it would be cool to get an Avid disc on the front end. As much for when I'm riding fixed as for off road riding with freewheel. I've seen a few different steel cross disc forks online:

Dimension for $57.00
Winwood for $195.00
Viscious cycles for $200.00
and a few more that run over $300.00

I'd like something durable, but don't want to spend more than $100.00. Is a Dimension fork worth it/durable enough? Are there any more steel disc forks out there for a reasonable price?

disck fork? do not skimp, get a Vicious/IF or something equivalent. You'll want it to be properly aligned well built and to last.

I just got a Kona Project 2 for my hardtail. The website shows the disc model @ $80.00

Cool. Looks like it's the stock fork on most of Kona's cross bikes, so it must be decent. I just read some reviews on it that made it seem pretty heavy, though. Is this true?

I have a deminsion on my Surly cross check. It is ok so far. I am a really big dude 6' 250lbs andI have no problems with it. I also have a rear disk on my cross check!
With all that said, I did just pick up a Viscious cycles disk fork on ebay. wanna buy it?

FWIW, the Nashbar badged carbon cross fork is the Winwood and they are selling it for $150. I've heard from a guy who bought one -- and weighed it himself-- that the uncut weight is 690 grams.

I wasn't aware that the cross check had rear disc mounts. Or did you install them yourself?

I think I saw that Viscious Cycles disc fork on e-bay. How much did you end up paying for it?

I had zanotticycles.com install the disk tabs for the surly. Sysip powdercoated it for me. I ended up dropping 70 on that fork.