Cycled Hum
When you record, turn off your CRT moniter. Sounds like you must have been using single coiled pick ups for the sort of hum you had right at the beginning. Either that or you need to stick a gate on your guitar. The drums sound like a Boss drum machine. Guitar clarity great (Line 6 guitar port?), but riffs are not structured and although the guitaring was confident, it wasn't overly skilled due to relying on hammer ons, pull offs, and slides (which you didn't always hit the right note).