It really just looks like a pile of Radio shack parts... which isnt necessaraly a bad thing. I would go through and price each of the pieces at radio shack or the equivalent and see how the price lines up.
I have a kit that I cary in my backback and it's basicly never let me down. Its:
3: 1/8" stereo male -> RCA male (6' cables)
~3: 1/4" female stereo -> 1/8" male stereo
~3: 1/8" female stereo -> 1/4" male stereo
~4: Mono RCA Female -> 1/4" male mono
3: Stereo female RCA -> Mono male RCA (can be used to flip genders around when used with the above adapters)
2: 1/4" stereo male -> 1/4" stereo male
You'll notice that there's no
XLR stuff there, but that's mostly b/c if your going from XLR to 1/4" or 1/8" your *probably* going from
MIC level to
line level so you need a DI box or some other more active device in the mix.