how important is the capacitance? I've got to put an order into Digikey anyway (because i fried my first attempt at soldering the pic on, and microchip has them on backorder). I'm looking at part number CM309A29.4912MABJT, which has a capacitance of 18 pf instead of 20 pf. i can't find an smt one that is exactly the same. ladyada, do you happen to know which part you used? or did you use the cylinder one?