I demand a screenshot matey!!! 
I don't use any visual enhancements so it won't look too fancy, but there are lots of FB skins out there that look way better than JRiver
http://i14.photobucket.com/albums/a316/Ely13/fbexample1.jpgHere are some explanations of what's going on here:
(1) The top-left field with the genres and artists are an exact replication of what's on my HDDs. For example, the album that's open could be on:
C:\Music\Pop\Sarah McLachlan\1993 Fumbling Towards Ecstasy
Lower down, one of the Cranes albums could be in:
E:\Music\Shoegaze\Cranes\1991 Wings of Joy
I use File -> Preferences -> Media Library -> Add (button), then set it to monitor C:\Music and E:\Music at all times. Foobar automatically builds an index (goes extremely quickly) of everything and updates it in real-time. If I use Windows Explorer and add another album to \Sarah McLachlan, Foobar updates without any prompting and does it within seconds. You can also use that Filter box for real-time search, or click on that 'View' box to load and sort your index by ID3 tags if you like iTunes-esque filtering.
(2) I setup a priority structure for the cover art at the bottom-left. FB automatically looks for cover.jpg as priority one, followed by album.jpg, then looks for .jpgs, then .pngs, then .bmps, etc., in the base directory first.
(3) Notice at the top middle that a tab called 'Library Viewer Selection' is highlighted. If I left-click once on an album in my media library, such as '1993 Fumbling Towards Ecstasy', that Library Viewer Selection tab automatically populates with all the media files. Foobar also has very robust cuelist support, so it will load a proper .cue as a clean list of songs as shown in the middle field.
(4) You can see the lyrics on the right-hand side with the blue highlighting the active part of the song. I use the Lyrics Show Panel 3 add-on to automatically pull lyrics from about a dozen online song dbs, and if there's lyric timing, it automatically syncs to the right part of the song.
There are a lot of other things under the hood which visually aren't displayed on the screen. For example, my Foobar has full DTS and DTS+HD decoders, DVD-A decoder, APE/TTA, multichannel to 2.0ch downmix, and pretty much every other file extension you'd need, SACD, etc., all enabled. I've tried virtually every major and minor audio player for PC and Mac, and nothing touches Foobar in support for pretty much every possible digital audio format out there (including DVDs and specialty hi-res formats), and only takes seconds to to extract and drop in /components. Pretty much everything you see here is customizable. Like, I could add another field that automatically loads the spectrum of every song (so if you load a 5.0 song, you'll see 5 spectrums stacked above each other) with a tracking cursor.
For playlist junkies, there are a lot of very deep playlist options to track, assign stars/ratings, manage the statistical algorithms, etc., for managing your library.
Unless you particularly like the sound of JRiver, it's not only a waste of money but a pain in the butt to deal with since there's very little UI customization
available the last time I used it, and Foobar has enormous add-on development and support through Hydrogenaudio.org. There are tons of Foobar skin sites on the net, and here are some examples to see what some people do (just be careful about downloading old skins, as Foobar went through a huge revision in 1.0, and there's very little reason to use Columns UI now):
http://foobarskins.com/http://techsplurge.com/3316/15-foobar2000-skins-themes/
