Final step in a near-complete portable rig

[PhoxHound]

So I've got a Creative Zen V Plus (which I love dearly) and some Klipsch Custom 1 IEMs on the way. I'm looking to complete my rig and will likely build a CMoy for my amp, but I have a few questions:

Are there any other good amps available for around 50 US dollars?

How would I interconnect since the V Plus doesn't have a proprietary dock like the Vision or iPod? Mini-mini interconnect or can I use the USB port?

[Lil' Knight]

You can try the Pa2v2. I think it's better than the Cmoy.
And yes, you can connect to the amp by a mini-mini cable. I don't think you can use the usb port.