What I did when building up my surly to be more of a work horse - I found some truvativ elita road cranks on ebay that were new and I think the cranks went for like $35 on the auction. They're nice looking cranks and have worked well for me - I managed to get them in 165mm, which is the length I like my cranks and is kinda hard to find. We got the bf a set of 170mm as well for about that price. I do have a spare set of carbon fiber cranks that I could put on the bike, but that kinda would turn it into not a work horse.
For wheels.. there's a place called rocky mountain cyclery on ebay which sells a lot of wheels. I got a 36 spoke deore xt hub, thick mavic rims 700c wheelset from them (well,I've gotten 2 sets) - great bomber wheels that spin well. the ones I got were 135 mm which is mountain bike width (I don't know what your hybrid takes for hubs), which was wide for my surly which is supposed to take 130 mm hubs, but since the surly's steel, it flexes justenough that I can use the wider hubs - I just gotta pull and push while putting the back wheel on.