Went to see both units (CSX not the CX) at REI.
Seems the biggest diff is form factor and button layout. For some reason, I like the Legend layout because I can do it one handed with the rocker/ENTER switch. This is probably due to my constant cellphone usage more than anything else. With the CSX, I have navigate with the rocker and then hit ENTER. The only time I could see the big advantage with the discrete buttons may be for car nav or on a bike where I might dedicated buttons. I also prefer the Legend's smaller, lighter feel.
I took a look at both manuals and functionally, both seem very close.
Found out that the Legend HCx uses a MediaTek chipset while the 60CX uses a SiRF Star III. From what I've read, they're pretty much on par with each other. Anyone disagree?
I'm leaning towards the Legend, perhaps I can use the savings towards maps.