I got a 6GB Hitachi Micro HD from
http://www.zipzoomfly.com/jsp/Produc...tCode=100446-1
for $ 216.75. But it has a $40 dollar mail in rebate, so you actually get it for $176.75. Right now though it is about $4.00 cheaper than what I paid for it. It is the best deal I know of out there and yes, it is definately compatible with Dell Axim X50V. I have had it since Nov. 1st this year and have no problems with it. If you run programs from it though, I have to say that it does drain battery power a bit. I can watch a full movie from it though with out my regular (not extended) battery being completely dead afterwards. I spent hours on the web looking for good prices and this is the best I can find. Hope this helps.