What is the part number for the E55 regulator and where to buy?

If this is easy to fix, and Im sure I can do it where do you get the voltage regulator? I have researched on the net and it appears the DMR-E85H has a STR G6353 reg. as well as the E55 from what I have read. This STRG6353 is expensive around 18.00 to 28.00 bucks plus s/h. However after more searching I discovered there maybe another IC Reg for these models.
Im cheap.

Hal
March 2008