I'd like to know more specifics about the issue. It sounds to me like he's getting hum from the power supply, which could be:
a) a bad power supply
b) a noisy AC line in yoyo's residence
c) a bad cable going to the DS-1 or bad cables between all effects
Yoyo, you need to identify the source of the problem first hand. Did your amp make the same noise before you put the effects in? if it did, then the problem is the AC line and you'll definintely need a power strip (not a vodoo or a brick) that will have filtering capabilities, so it can get rid of the noise.
If the amp didn't , then try playing your amp with the GT-8 alone first and see if you get the same noise. Then, try running the amp alone with the DS-1 and see what happens. If no noise is heard with the DS-1 alone, or the GT-8 alone, then you can eliminate the power supply from the equation. Do the same as above with different cables to see if you can find the culprit. If everything is still sounding ok, at that point, invest 50 bucks on a humX to see if it'll get rid of the noise. If the noise persists, return the humX, get a line conditioner and it should fix your problem.
Ground-related noises can be a major pain to deal with. Having worked with high end home and car stereo systems before, I can tell you that it's a process and you have to be patient and try to isolate the problem in order to fixt it. If I suggested the Monster Pro 1000 bar was because of the little information you provided and I still think that it would solve the problem. however, seeing as you're only 14 and have no money to fix the problem, the best suggestion I can tell you is to try to isolate the problem first and then try one solution at a time and if it doesn't work, you can always go back to the store and return it.
If you do decide to get a surge protector with filtering capabilities, check out the monster ones:
Please post back with your findings.