I am having trouble deciding which route to go as well. Here is how I see it...

DICE Pro's...

DICE displays the album title, artist, and song title while the ice>Link Plus only displays artist and song title. (points for the DICE IMO)
DICE allows one to navigate the iPod via iPod scroll wheel at any time. (this may prove handy, anyone? Is it sometimes time consuming to find a song via the BMW controls?)
$20 less (not a biggie, really)

ice>Link Plus Pro's...

ice>Link Plus allows browsing by playlists, albums, & artists while the DICE is only able to browse via playlists and albums. (big points for the ice>Link Plus IMO)
ice>Link Plus has 3 user defined charging modes. DICE always charges iPod, which may not be good for the longevity of iPod battery.
Ice>Link Plus is able to accept firmware updates

I'm kinda leaning toward the ice>Link Plus. Tom, can you confirm my reasoning? I thought I read somewhere that the ice>Link Plus will not be available in the near future, is this true?