Reasonably accurate, inexpensive dB meter--ideas?


This would not be to tweek the system, just to monitor my listening levels to avoid potentially unsafe volume exposure {but still make sure it's as loud as I can get away with :)}. Are there any recommendations for a reasonably accurate, inexpensive (under ~100 bucks or so) dB/SPL meter?
mdhoover
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Radio Shack has a couple reasonable meters. I opted for the analog version over the digital. I bought mine a few years back and believe it was around $30.
I remember reading that Radio Shack discontinued its analog sound level meter and that the rights were bought by ATI, which now markets the product with an improved frequency response. (I recall that the Radio Shack version had a sensitivity fall off at the low end.) I think it sells for about $70 now.
If the rat-shack treats its customers and product in the same manner that it treats its employees, I think I would have second thoughts about patronizing such a company, buy ATI... my 2 cents...