hey Acalex.
don't get too much wrought-up with cables. but I guess that's something everyone new to hi-fi has to go through.
my advice is; you buy yourself some fancy cables if you want to but you should compare them with your standard white & red standard copper cables. most preferably get yourself blind tested. if you can hear "the difference" and if it's for the better than it's good for you and you could get yourself some nice shiny cables. otherwise I wouldn't bother.
my philosophy is that in the end it's the electronics and speakers what count and not some interconnecting wires. besides do you really think that what you'd find inside your amp or speakers are some exotic cables? at best it'll be simple high purity copper or pure silver wire in Teflon dialectic. nothing extraordinary. no voo-doo. so, I gather, for connecting equipment it's best to use what is already used inside.
I personally use Atlas Hyper cables. it's relic of my cable-experimenting days. the good thing is they're just simple super pure copper (7N OCC copper) in some dialectic. price within Atlas generally depends on dialectic type but I think they're well overpriced anyway. at least they look smart hooked up at the back.
I compared Atlas once to standard red & white interconnect I got with my previous set up. there was some difference but it might just as well be my imagination. the difference (if there ever was some) was so faint that if I was blind tested or if someone swapped the cables without my knowing it I wouldn't even notice it.
so, save yourself some frustration and if you're going to upgrade the cables just buy high quality pure silver or pure copper wires (silver is more expensive so if you're going to go silver make sure you get proper gauge). some people claim they can hear a difference between solid core and stranded wires and usually prefer solid core. I don't want to argue with that. if you feel like experimenting - be my guest, but I'm done with my experimenting.
anyway, I advise you to stay well clear out exotic hybrids, magically enhanced wonders. you might even hear a difference between such cables and standard ones but question remains; if this change for better? only pure conductor gives you guarantee that the signal is not manipulated.