SGs are real quality but affordable guitars for those who want a good heavy sound, they can go as cheap as $200 at Guitar Center, thats not a deal I would pass up.
Epiphone make the best guitars for cheap, I don't know about you, but I love archtops, which are perfect if you want more of a Blues/Jazz sound and Guitar Center have some fine archtops as well, Gibson and Epiphone make the finest archtops, though Gibsons are incredibly expensive, so for something cheap I would go with an Epiphone Dot, or an ES-175, my personal favorite guitar model.