If I remember correctly the Power sun bulbs are mercury vapor bulbs which put out alot of UVB rays. The florescent 10.0 tubes don't put as much UVB as MVB, but are better than the other grades of florescent UVB tubes (ie the 5.0 and 8.0) They put out rays up to 20" away so their range is great and the percent UVB they put out is of course, 10%. SO they are better, more cost effective than mercury vapor bulbs, unless you have a tall tank or just like the higher outage of MVBs. I haven't used the 10's yet, mostly because when I went to buy my 4' long UVB bulbs for my dragon's new cage, they didn't have any of the 10's in stock, so I bought the 8.0's instead.
Phoenix worms can be mail ordered directly from them and most pet stores and online feeder stores have them now. These are very nutritious, high in calcium, low in phosphorous, high protein etc but not all that high in fat. Below is the link to the main manufacturer/distributer of phoenix worms. They are not very expensive and can be refrigerated. I also included a link showing their nutritional content compared to other common insect feeders. The site says calciworms but they are the same thing as phoenix worms (both are black soldier fly larvae, I wrote to calciworm and asked them and they confirmed what I suspected).
www.phoenixworm.com/servlet/StoreFront
www.calciworms.com/nutrition.htm
As for reputable breeders of bearded dragons, there are plenty of them around. Checked the classifieds. Any names you recognized from three years ago, are most likely very reputable. Those that are fraudulent or scammers, don't last long. Sandfire dragon ranch, Diachiu (or however you spell it), are still very good breeders etc. I haven't really kept track of who the big breeders are in the US since I am not living in the US. Half the regular posters here are breeders themselves such as pgdragons or something like, the one with the odd but curious looking translucent range of dragons, he typically posts weekly with new pictures.
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PHLdyPayne
kill 'em with kindness 
