Hi and Welcome to the Forum:
What brand of machine do you currently sew on? That may be the first place to start looking for a combination machine. I love Janome machines and they are all I own. My first embroidery machine was a Janome 350E (it is embroidery only)but a new one might be out of your price range. But you may find one at a local quilt shop that was a trade in. Some local quilt shops also sell Brother machines and that would be a good starting point. Find one that sells Brothers, go talk to them, and get a feel for what the price range is. And finally, do a google search for embroidery/sewing machines within your price range and see what pops up.
Wish you luck in your search.
Oh and by the way, think about having two machines if possible. One to sew on while the embroidery machine does its thing. Multi-tasking!!!