First off, before Raiyn gets nasty with you, it's agains't forum rules to use "Aol'ese"(u in stead of you, 2 instead of to/too, etc.)
But welcome to the forum!
The Sun Rynolites are good rims are pretty cheap. They usually come laced to an LX/XT hub. Also, what spoke count are you using right now? If your already using 36h rims then you might want to try and get a pair of 40h tandem wheels.
If you mess up the tandem wheels, I don't know what to tell you...