I'm liking the logitech x-230, but the one negative about it is that it has too much bass even with the subwoofer turned all the way down. That's bad for jazz, which is what I listen to, and what a couple of other users are complaining about on the web. But it seems to be a good choice overall.
That Phillips Expanium one doesn't sound bad, if I can figure out exactly where to put it. I remember that from 1994-2006, I just used an old 1984 Sanyo boombox to connect to my soundcard, and it was pretty good. Now I use my Roland keyboard amp because I have an extra one. It just goes to show, that like many other things, it helps to think outside of the box. I've always been suspicious of these speakers that are marketed for computers only, as if they are a different kind of speaker that a regular speaker. They are probably more cheaply made, and the only benefit is that they are plug n play and visually probably match the computer look. But I guess the best thing to do is to get the best speaker in general, not the best computer speaker.
That being said, because this is not for my house, but for the office, I may have to put my elticism aside and just get a computer speaker. But, like I said, I may do the boombox if I can figure out how.