Chocolate baking bars vs. chocolate chips? Possible Duplicate:
  Can I use Chocolate Chips in place of Semi-sweet baking chocolate?  




Can I substitute chocolate baking bars for chocolate chips?  Usually the baking bars are so much more expensive.  I am going to be melting the chocolate, so I'd figure chocolate is chocolate, right?  However, I am worried about if when letting the chocolate set, if the results are going to be different or not (texture, shine, smoothness, etc). Thanks!
I would say that if you're melting chocolate, it's fine to substitute chocolate bars - maybe even preferred. Chocolate chips are a much lower quality chocolate than real chocolate bars. (I've read that chocolate chips contain less cocoa butter, so that they hold their shape better in cookies - which also makes them harder to melt.) In general, I've found that when baking with chocolate, the higher the quality of the chocolate, the better the end product.