Good on you bud - I've already got one set of ProClass needing a bit more than tlc in bits anyway, so I was just being greedy!
I've just literally finished lacing up a set of NOS 31yr old very special rims indeed...... wait till they get back from my lbs at the weekend, they are just fookin' lush
Read the thread about lacing, and just build it loose to start with. best thing to do is strip one wheel down so you can copy the other with the new spokes, then strip the second and copy the one you've just built. Simples......
Also, give them a good scrub and polish them lightly if you can as they're a nightmare to clean when built
I'll post the pics of mine when they get back from the lbs for final tensioning as I still haven't mastered that black art yet