Congrats on the baby, it sounds like you just need computer speakers. Powered Speakers are nicer but they require a lot of additional work. In all honesty you can go out and get a set of Creative or Logitech's that will def. suit the purposes you are going to use them for and we are only talking about $50.
My normal speaker comments:
The general recommendations are going to be some Bose product that I won't recommend and people will make jokes about. The Sound Sticks which people seem to be giving a lot of credence to these days. I'll recommend the Altec Lansing FX6021, which will lead to another discussion. Then someone will recommend the Logitech Z-2300. At this point, someone will recommend that something from Wal-Mart that costs $25.00 and they will swear it that's greatest thing ever. Someone will then recommend Bose and get flamed, followed by the comment about get yourself a good set of cans (headphones), because those will always sound better. Somewhere along the way the M-Audio's will be thrown around, followed by people like me recommending a different set of pro monitors, followed by another Bose posts. There are a couple of intangibles: someone might recommend the Klipsch Pro Media 2.1, Creative's T40 or some other Logitech that's probably not as good as the Z-2300s. After about 20 posts or so, the general consensus will be reached by a couple of users, you should probably just go hear them for yourself, making the thread well...you can decide...
Here is one thread for $100 USD. Good Discussion.
USB Speaker Discussion
Here
Here is another discussion
Wireless Thread Here...although it diverged.
2.0 Discussion
Here
$200 Discussion
Here
