Lots of choices in the $600 - $800 range. Ponnie has some good advice...especially the Naim NAIT recommendation - magic! The DL110 is a gem on the SL1210.
Musical Fidelity, Rega, Linn, Creek are all strong choices, too! Depending on your sense of adventure, you might want to consider a vintage receiver from the late 70's/early 80's - Marantz, Pioneer, Kenwood, Sansui, Yamaha, etc.
Don't go crazy on cables - yet. Start w/ good, basic copper, then experiment as funds allow.
...just remember - if it sounds good to you, it IS good!
Lots of good reading at The Audio Asylum ;)
Good luck!