That system is very nice and unless you do some major upgrades for large costs, I wouldn't do much unless something in your opinion is missing from the sound. Suggestions that come to mind; I used MIT 330 cables and they were nice. I upgraded to Transparent audio cables and experienced a noticeable improvement in sound without major costs. I purchased the cables used to save money. If you can borrow cables, try them before purchasing. The transparent cables are quite nice and you can find used cables fairly easily and they aren't expensive. They were an improvement over my MIT 330 cables. Noticeable improvement. Next would be to borrow a decent used external DAC and listen to CDs through the rega as a transport only. But again, you have a nice system and it would take some major cash to really see improvements, other than cables and decent (but not stupidly expensive) DAC.
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