I completely disagree with the post about the pickups and the woods. Ofcourse the woods makes a tremendous differene, however, a cheap guitar, CAN sound loads better with the switch of pickups. I bought a super cheap Washburn a few years ago ONLY becuase I loved the way it felt in my hands. The config was SSH. I put a Lil' 57' in the neck and s Screamin' Deamon in the bridge, tweaked the neck out, and am STILL in love with it. Although there are a few guitars that I have played and fallen in love with since, there's a particular sounds that this guitar has that I absolutley cannot do without. And I STILL have not found a guitar that has the feel that this on has. (The Lil' 57' is one of many stacked-humbuckers that you can upgrade your guitar with. Ofcourse, Humbuckers are designed to be "quiet", or at least quieter than single coils.)
Now, having said that, if U're going 2 replace pickups, you need 2 know what kind of sound U're looking for. Single coil pickups, by nature, are "noisey", not all them, but in general. The single pickups that you can purchase for this guitar that would provide little/no noise, would cost U pretty penny, it would be wiser to sell you guitar, and use the money for pickups towards buying a higher end guitar. I think I put an extra $150-200 on this guitar ..
Also, this may be a grounding issue with the electronics of your guitar. Meaning you may need to have a guitar tech "clean" up the wiring of your guitar, ie, re-soldering, checking your 1/4 input jack, etc, etc... Also, the source of the noise could be coming from your cables. Cheap cables can easily kill your sound with unwanted noise.