> There's been a lot of discussion, quite recently, about this as well. My vote is for a metal-cutting bandsaw and fine-tooth metal-cutting blade -- about $160 from Harbor Freight (on sale or with 20% coupon). Yes, that's a lot to pay just to cut PCB, but if you have any need to cut metal on any sort of regular basis, this will work for both tasks.
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Just standard blades will wear fast cutting FR4.
What would be better than a band saw is a table saw or bench model table saw with a Dry/Wet Diamond Blade, set up good dust collection with a fine filter and also protect the motor air intake with a filter to keep from it sucking in the fine dust.
Ben