I bought a cheap LCD TV in haste

I've already hacked it to get the USB port working incl DIVX & XVID

Now, I need some decent sound.
The TV only has one audio out - "digital optical".
Keeping in mind this is a cheap-o TV for the kids, but I want some increase in bass for when watching movies. Seems to me a 2.1 channel "sound bar" would be perfect.
BUT, I'm having trouble finding one sub-$500 with the digital optical input.
The only other requirement I have is IR remote - I do not want a wired remote!!
Also, not a fan of bluetooth remotes as I'm looking at a Logitec universal remote.
Any suggestions please!