Inkmo: Thanks for pointing out the ThinMod theme and the GNU Unicode font @ 16 point. I just set up my Fuze this morning with that theme and parameters. Things are looking really good - from a usability standpoint at this time - and, to my aging 47 year-old eyes.
As far as the DAC goes, I've held off a bit. Work, etc. has taken my time. However, I'm not without some good alternatives for the moment. I'm running my Grados with my home gear and my Squeezebox players, which feature Burr-Brown DACs. I'm very pleased with what I'm hearing. When it comes to using my portable players (Fuze, E200, and Walkman) - I picked up a pair of Klipsch Image S4 ear buds this week. While I do have window to return them, I think they might be "keepers" for me. I use them to go to sleep at night as they are a bit less clunky than my Grados and use them a bit at work, if I'm on a project that allows me to concentrate and have my music rolling.
I'm still seriously considering trying the FIIO gear, though. I have an authorized vendor about 10 miles away as listed on the FIIO distributor Web site. At the beginning of last week, they only had the iPod LOD connectors, but were out of the Sony and Sansa LOD connectors. I may make my move once I can confirm these connectors are in. The F7 / F9 combo would allow me to travel to work with the F7 and I could use both the F7 / F9 at bed side. I don't think I'll move away from my main level system of the Squeezebox and Onkyo, though. Again, I like the sound and a 25' Live Wire headphone extension cable from Guitar Center allows me to move between the living room and office area without jeopardizing my listening.
I also have those Klipsch S4s. Apparently my ear canals are different sizes because they drive me crazy. The closest to a decent fit I can maintain is with a large sleeve on one and a medium on the other. I hear Shure Olive Foamies (I think I'm naming a thing that is real. Are those a thing?) could be a good fix for me. Hey, tell me if your Klipsches do this: I get a crackle over the line sometimes. Doesn't matter if they're plugged in or playing or whatever. I think it has to do with winter weather and static. Otherwise, I think the S4 is pretty great. For some reason I get the impression it does drums better than all of my sub $100 headphones.
The Fiio E7/9 combo was one I was thinking about, too, though I think the E9 would live at work. I don't have anything at home my Pioneer can't drive.
Hey, have you tried out Pictureflow? It's neat. You can also tell Rockbox what screen to start at on boot (ex. Pictureflow) somewhere in the system settings.