Separates vs. Integrated

Rather New to the site, however I have been doing a lot of research about putting together a system with separates. I was wondering if someone could recommend some good pre-amps/amps in the range of $500 - $2000 that I should check out as a kind of starter system. Also, I have been researching integrateds as well, which seem like you get more bang for your buck, but they are similar to receivers (ie. not separate) - thoughts on going this avenue as well would be greatly appreciated. Oh and planning on running vinyl and cds mostly.