There seems to be a lack of a good payware EMB-120 for FS2004. With the files I will point out, a very nice combination will unfold for you turboprop lovers.
First get emb120.zip at www.avsim.com - this is the original aircraft by Erick Cantu. Next get the 2d panel at avsim as well, e120v1.1-fs9.zip .
Then for some nice liveries by Steve Drabek and others: New Skywest - skw_n293sw_emb120.zip, Old United Express - texture.uaold.zip , Mesa Air Lines - texture.me.zip , and a nice British Airways livery here : texture.ba_205245.zip .
All available at www.avsim.com as well as some replacement prop textures - emb120_newblades.zip - be sure to follow the readme here, as well as adding these files after you have installed the repaints/liveries.
And a good soundset is here : emb120sndpk.zip by Adam Murphy - at Avsim. Pretty darn cool and realistic.
Hope you like the shots and I hope this post is helpful to any wanting to give this aircraft a try.