I'm not going to bother reading all the posts, because for the most part a lot of them say the same thing. So excuse me if what i'm going to state has been repeated.
Everyone should know that high end cables are a complete waste of money.
This post if for everyone who wants a good deal on cables. If you want a descent set of cables (not just dollar store) go to xs cargo and pick up some accoustic research cables or GE, or even monster cables, all for around 20 bucks a cable. (Though sometimes monster is as high as fifty bucks).
I would agree with this statement if everyone was running a $199.00 HT in a box system. Ain't nothing in the world going to improve the SQ or PQ on that syatem. However do not confuse quality with high price when talking about speaker cables and interconnects. High quality speaker cables exist if you are willing to do a little research and can handle an hour or so of D.I.Y.
Interconnects are a little more difficult to assemble if you have no or little sodering experience. In reality, the best IC's are soderless but to crimp them you do need fairly expensive crimping tools which defeats the low cost of the cable and connector.
The first step to getting a better sounding/looking system is to do a little housework in thedrat's nest" that is behind your gear. Try to keep all the power cords away from any IC's or speaker cables. Route your power cables away from the IC's. If you must, bundle your power cords together with Velcro or zip ties, but do so loosely. If you must cross a IC with a power cord, do it at a 90 degree angle. Have an excess of speaker cable? Do not loop it together like a lasso but let it "snake" on the floor.
Proper cable management will and does make a difference.
You want to try a couple of inexpensive speaker cable setups without having to break the piggy bank? Source out some Canare 4S6 cable. You can find it for around $2.50 a foot. It can be used in a bi-wire configeration or as a regular two wire run. Your choice.
Another excellent choice is IXOS. A little harder to find but around the same price as the Canare. It makes an excellent 2 wire cable.
Be very aware of the assembly quality of any cable you buy. Cheap cable = cheap assembly. You do not have to spend a small fortune to get quality cables. There are several folks out there who assemble custom IC's that will blow away even the "exotic" stuff and they do it for very little cash. They use the exact same wire/cable and assemble with the exact same tools. Only difference is they are not trying to retire on selling a couple of sets of IC's
Also remember that everyone hears differently just as our vision is different. If you are as deaf as a stump then soild silver cables with pure 24 .crt gold plugs ain't going to make an ounce of difference in what you hear.
Is there a difference between a Kia and a Bently? Hell yes. Do you have to buy either a Kia or a Bently? Hell no, there are a ton of cars/trucks/mini-vans between them. You pay your money and you take your choice. Key words here are "your choice". Just don't tell folks that your Kia drives, rides and is built the same as thier Nissian or Bently. You would be doing them a grave injustice.