Looking for suggestions on reasonable upgrades


I'm going to lay out my system and perhaps some of you can offer suggestions for upgrades, without major changes and $.
Amp-Moscode 600 (no mods), preamp-Rogue 66, speakers-Thiel 3.0a's, cd player-CAL Icon, turntable-Luxman PD 441 w/Denon 202? arm and Grado XT 1 (blue stylus) cart, speaker cable-old Monster Cable, interconnects are mostly what stores have on hand (very basic). So, there it is. Any suggestions? I listen to all kinds of music except heavy rap and metal. Lots of Rock, Jazz.
bdunne
IMO, you should consider dumping the old Monster Cable speaker cable and get something that is newer and not oxidized. Old Monster Cable is very dark and cloudy sounding.
I agree with the above comments. Get Frank's cables (Signal Cable) and you will be amazed without spending much money. The Monster Cable has GOT to go.
Agree with the above. I can also testify to the quality of Frank's cables. I have both the interconnects as well as the speaker cables. I've compared them to MUCH more expensive cables (MIT Terminator 2, Sonoran Desert Signature, etc.) and they simply cannot be beat for the money.

The rest of your system actually looks great and very well-balanced. I'd like to hear it. My father uses the original Thiel CS 3s and I think they're fantastic. I bet that NYAL really keeps them under control!