Help with Cables "which ones best for my set-up?"

Im fairly new to this hobby but have assembled what I hope is a good system to start. Mcintosh c2300 Pre amp. Mc501 mono amps Vpi Super Scoutmaster turntable with dinavector 20x High output. And last weekend my Sonus Faber strads arrived. I was using some old linn 5140s I pursched about 10 years ago for my media room. And the linn bi amp speaker wire. Having bought all this equipment since march of this year my wallet needs to rest for a while. However I know I need to work on cables, but which ones and what should come next? I also have a benchmark DAC 1 and a dedicated mac mini with a dedicated 4 terabyte drive. Any advice on my system and what should come next would be welcome.