What are you looking for in this new wheelset that your old wheelset doesn't do? What are your intentions for this wheelset? Do you plan on racing? Are you just riding it on the streets? Do you run brakes or do you stain your underwear? What is your weight and riding style?

Those are some of the important questions to ask and answer for yourself.

Velocity Depp V rims are of good quality but heavy but you can generally build a stronger wheel because you have shorter spokes (however cannot speak to citygrounds for quality of their wheels) If strength is your goal a good quality high flange 32h hub laced with SapIm Strong or DT Swiss Alpine III spokes and locking brass nipples to Velocity Deep V rims will likely be a pretty damn durable wheel that could take serious abuse. Of course cheaper machine built wheels will likely not be as durable so that can be a factor. Scrodzilla who is a regular poster around these parts runs a shop called Retrogression and hand builds wheels for fixed gear bicycles but there are also a ton of other wheel builders including some folks at Velocity.