First System Advice on Cables

I highly recommend you check out bluejeanscable.com XLR interconnects. They use very good connectors(Neutric) and pretty good quality wire. They compared very nicely to a much more expensive Audience AU24 XLR interconnects in my system.
I am actually using a relatively long run(11ft) of bluejeans RCAs now from phono stage to my preamp with very good results and it blends fine with my other much more expensive cables. As far as speaker cables, I would recommend, if you go with XLR interconnects, to invest most in a good speaker cable.
Some sp. cables to consider are lower end Synergistic Research, Purist Audio(Meauseus), even Monster M2.4. Also, the word is Anti-Cables are good, but I never tried, so no opinion on that brand.
As far as power cords, put the best one on the source component and if this has to be the only power cord you can buy now, buy the best one you can afford.

If you listen to rock, blues, or jazz, I can also recommend Blue Jeans cables for your first system. What they currently list on their website as their favorite balanced and single-ended ICs are good sonically, well made, and affordably priced cables. I am not going to say that they are as good as anything I have used, but that they are good enough to get the jest of and sort out most systems and enjoy music playback, so they make sense for a first system.

After that, it can get a little messy and confusing with various cables having various colorations, especially if you are [know it or not] trying to compensate for component or room colorations. Build a good foundation (system and room) that pleases you when listening to music, then drive yourself crazy with cables.

No offense intended but it matters little as to which cables you use at this point.

Find something used on Audiogon; there are many inexpensive brands from which to choose.

After that concentrate on the components, ac power, and your room.

Go back to cables later.

IMO

Cable recommendations are very difficult to make as each system is different and what works for one system does not necessarily mean it will work in another system, additionally everyone has there own tastes as to what sounds best to them. Each of these recommendations is very sincere and I am sure it works fine within there systems and they are quite happy. I have always found that the MIT cables have had a particular synergy with what ever system I have owned, It is due to these cables having network boxes which enable you to match the impedances of your electronics, as well as addressing the additional interactions of your electronics and speakers, enabling you to extract the optimum performance your electronics and speakers are capable of. This matching can make MORE of a difference than changing other pieces of electronics. I suggest you find a dealer who will let you AUDITION the MIT cables within your price range in YOUR system, I am pretty sure you will be quite impressed and your search should be over.

I would make your own cables with Woods Yard Master Patio Cord from Wal-Mart $$$7.44 6moons.com did a review on these diy cables here..... http://www.6moons.com/audioreviews/whitelightning/moonshine.html