I am not very experienced with music BUT I have ripped all my shop bought cd's using WMP 10 in the MP3 format for quality.
When you say small speakers, I dont think the physical size matters, I bought a pair in Staples last week for £16 but you can find some for £5.
The ones I bought have a an electric cable lead as they have a built in amplifier and one lead to plug into my laptop.
\if your pc is a desktop, I think most speakers would be ample depending how keen you are.
I can also plug my mp3 player into these speakers and it gives me all I need