Hello, I am looking for a CHEAP, but decent external hard drive that I can use for extra storage from my laptop. I shoot in RAW and my laptop storage is completely filled up. I am looking for at least 500 gigs. I also use BING so if you know of any BING deals too, please let me know! Right now, I am considering a 500 gb Digital Western My Book or the other My Passport....but the My Book seems to have better reviews....Any ideas from fellow photographers?