I got my sansa from OD also, it was a solid price while on sale + MIR.
I am completely satisfied with my player except for a few issues which I havn't quite been able to figure out.
a) its been largely regarded as the single biggest reason not to buy this mp3 player and its that tracks from an album do not play in order. Ive encountered this problem, it sucks.
b) this is kind of rambling but here goes. initially when i threw some songs on there the id3 tags were unorganized so i ended up with a messy database.. So, i had one mix by DJ Adam Freeland and another by just Adam Freeland, my goal was to make them both Adam freeland, and lose the "DJ" tag. Using MSC mode I went and edited the id3 tags directly on the player, refreshed the database (unplugged the player from my comp, it reboots then rebuilds the database) and it had no effect. next I tried deleting the file off the player, refreshing, then copying the fixed file back to the player. That worked kind of,
In another instance I deleted a file off of the player (note that the only way to remove files is via the computer, the player can't delete songs itself) but the song still showed up in the database, except since the song wasn't really there it just skipped the song and went to the next one on the playlist. Then when I copied the song back to the player I then had two instances of the same song. One was the ghost entry and one was a legitimate entry.
Finally I had to delete the whole directory, refresh the player, and recopy the album. That removed one of the ghost entries, I still currently have a ghost entry on my player that I can't get rid of.
c) my third complaint is something that I'm sure other players have, and thats how it scans through a song. On this player scanning through a song means it'll move at intervals of about 10-20sec as you seek through it. This is really annoying when listening to an hour long mp3, making it a pain in the ... to scan through anything longer then a typical song (3-10minutes). I wish they made the scan a percent of the song rather then the 10-20 sec intervals.
d) one more issue that ive just recently ran across is with the video playback. okay heres another long winded story, for one the bundled software is a piece of cake to use, no problems there. I put a WMV music video on my player, it got converted to mov and played fine. afterwhich i put two MOV's on the player, again it was converted to a quicktime file. the problem arose in the playback. every 5 seconds while watching the originally mov files there would be a hiccup in sound, very annoying and made the video not worth watching. the WMV video did not have this problem. It could be a result of bitrates or whatever but I just dont know, I'm only one week in on this player.
On the other hand the buttons that ppl complain about are smaller then other players however I dont find any problem with it at all, im quite comfortable with it. The EQ could have been made better, the normal EQ sounds best to me but there are enough presets to get what you want to some extent.
Anyway Im in agreement with everyone else that they need to upgrade the firmware, if only to recognize the track # on the id3 tags.
also to the OP, I use koss plugs, koss ktxpro1s, and senheissers mx400's. The default volume (50%, and it resets to back to 50% on powerup) is in some cases simply too loud.