OK you must have misunderstood.
IMO the MG series of Marshall sound like ass..
THey take a 200 dollar crap SS amp... Slap a marshall nameplate on it.. and that instantly raises the price of the amp up to $500. Then they get Zakk Wylde to say he uses it and they make a killing selling it to people who want a Marshall.
Now dont get me wrong... Marshall Tube amps sound GREAT... IMO you should get one of those... A JCM800 or something..
The MG series is a budget line that sounds like crap... if you only want to spend $500 I could find you a handful of amps that sound way better.
But I would Spend more on my Amp then I would on the guitar... a great guitar through a crappy amp sounds like crap. A crappy guitar through a great amp sounds good.
Where in NFLD are you? Have you checked Craigslist? some great deals to be had there!
Edit: The Fender is a great amp... but imo it wont do TOOL of SOAD very well.
edit: 2 Try reading this thread
http://www.ultimate-guitar.com/forum...ht=marshall+mg
Edit3: Here are 2 amps that are better then those 2 you picked
http://www.musiciansfriend.com/compa...ase_pid=481442