Sounds like you've got a really nice start. In college, my first "audiophile" system was a Marantz integrated that I used as a pre-amp. It fed an early Hafler DH-200 (built it from a kit - still working as the subwoofer amp in my second system). Of course the only worthwhile source at the time was analogue. Connoiseur TT with Grado cartridge. Speakers were DIY with KEF drivers. Placement was not too much of an issue. These were replaced a couple of years later by Magneplanars. Creeper is right. Placement is hugely important and it took me awhile to figure it out. You have to be willing to move them into the room and experiment with placement. Sometimes hard to dedicate that much space, especially in a room that has to serve multiple functions.
PS: Don't blow too much money on wires. They make a difference, but nothing's more discouraging than spending a bunch of cash on wire only to bring it home and find the effect on your amp/speaker combo is minimal. See if you can find a shop that will let you try-before-you-buy. Good luck . . with system and school.
