Before you "strip off the flash" I would like to let you know you can pick up a decent flash for around $100.00. I have this one:
http://www.amazon.com/Sakar-952AFPEN-952AF-Power-Flash/dp/B001254HHE/ref=sr_1_7?s=electronics&ie=UTF8&qid=1319320703&sr=1-7
(Actually, mine is a Digital Concepts 952AFPEN, which I'm certain is the same product rebranded).
which is pretty much identical to the Vivitar 383.
I also have the Metz 58 AF2 and I use them about the same. The Metz is around $400.00 and very nice, but the Vivitar (or similar third party) does a great job, has pretty much the same features, and I don't worry about it as much as I do the Metz.
I have a k7 and k-x and am very happy with all my gear.
like others said, don't limit your photography with one lens because of dust.
Bill
Last edited by Snydly; 10-22-2011 at 03:21 PM.