I have had awesome experiences with Canoga Camera - both on line, and in person, in the shop. They will match on-line prices in store (which is something a few others won't do), and they are extremely helpful and knowledgable. They also generally ship orders the same day that are placed before 2:00 p.m., so they may even be able to ship it to where you are staying, and you can cut some of the gas prices that way. (I had a lighting set shipped to my home this past Thursday - I would have driven out to the shop, but it would have been $40+ for gas, and it was $12 for shipping... so I waited a day to get my hands on it
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Also, if you call ahead, they will hold any items you wish to purchase at the "pro counter", so you don't need to worry about making the drive in vain.