My connection is usually in the region of 1.6 - 1.8mpbs, so the upgrade might be worth it then? I know the E220 isn't HSUPA, so yes, the 1.2mbps upload will be unattainable for now.
An update though - I opened up my unrestricted APN yesterday and quickly ran a test with Call of Duty this morning. I could connect effortlessly to ANY available game with minimal lag. I could even score a few kills along the way! I will test it again tonight round about the same time as I tried gaming with my buddies earlier this week. I'll also phone for the 3.6mbps upgrade today and see if it makes a difference tonight. Just a few final questions: If I DO activate the 3.6mbps, is it possible to deactivate it again if I see no notable difference? Also, how long does it take to activate? I read you just phone 155 to activate this service, is this also correct?
Thanks for all the info people!