I am assuming you are talking about fixed.

One of the problems you may have is drop out spacing. This is the inside distance between the rear drop outs. Most track hubs are spaced for 120mm (thus track frames are 120mm). If you are converting an old road bike it is most likely 126 or 130mm. If this is the case you will need a longer axle and add a few spacers to it.

You can buy hubs set up like this or you can do it yourself.

Airbomb wheel
This wheel states that it is a track wheel. I would have to assume that it is spaced for 120mm and that is the way all the Suzue hubs come.

Axles
These are the axles you would need. Sheldon also sells spacers. Sheldon will also do all the respacing and axle swapping for you.

From my experience the chain line usually is not a problem. You can usually fine tune this around the bb or crank bolts if you have to but you usually do not have to. I may get abused for this but one of my cranksets chain line is off by about 20mm and I have never had a problem with it.