Yeah, it's probably a bit overkill. Especially at 32-holes on the front wheel - I think that's almost a motorcycle wheel there...

OP: Welcome to the world of 200+ lb cycling, where mass-market wheels fall apart. Psimet - Bike Forum's resident wheel builder - posted a semi-rant about that a day or two ago, and he's likely to be along in this thread shortly.

The fact that you're seeing multiple broken spokes means your wheels aren't strong enough for you. Maybe it's because the build quality wasn't good enough, maybe it's because the design itself wasn't strong enough. At this point it probably doesn't matter since you've probably fatigued the remaining spokes to the point they're about to break anyway, so retensioning your current wheel will at best delay the inevitable - a rebuild with new spokes and nipples or a new set of wheels.

The Bicycle Wheel Warehouse link I posted would be a set of wheels that would last for years, and it's priced pretty good. It could be improved upon IMO. One of the things I wish BWW would do is provide options for wheelsets with a greater disparity between front and rear wheels, as rear wheels on road bikes normally take a lot more punishment than front ones. If a 32-hole rear wheel with an RR585 rim is sufficient, a 32-hole RR585 front it total overkill. For example, I normally ride on a 32-hole RR585 rear and a 28-hole RR415 front - a MUCH lighter rim. But you can't get a set like that from BWW - you need to get it from a pure custom builder.