If you are going for the clangy-metallic type sound that Current Value is sometimes known for, you may enjoy this pack of ringy snares I put together for a friend... http://dl.dropbox.com/u/58002/Ringers.zip If you want to use these to layer over an existing snare, to give it the ringy sound, what I...

Also look into apple refurbished on their site, will further knock down the price (google apple refurbished). As others have said make sure you have a good interface, because I wouldn't trust any built in soundcard to do the heavy lifting.

Some monitoring AUs

Free spectral analyzer AU, Bluecat's FreqAnalyst http://www.bluecataudio.com/Products/Pr ... eqAnalyst/
Free oscilloscope AU, s(M)exoscope http://bram.smartelectronix.com/plugins.php?id=4

When you hear a "wobble" all you are hearing is the filter's cutoff value changing in time. Filter cutoff would be the frequency at which the filter is applied, and the filter is just a curve that silences some frequencies and lets others through. Usually in dubstep songs you are hearing a...