E mobile Japan6700 Yen/month seems rather a lot. Here I have a data package that's £7.50/month (~1000 Yen/month), but it's not unlimited - after 5GB/month it starts behing metered at an absurd rate. Never come close yet, though! Speed is 7.2Mbps HSPDA in city cent...
Pocket Money in JapanSchool levels seem reasonable, but pocket money at college/university? No-one I know was still getting pocket money after they left school!
Mac GetYep, Ubuntu rocks. You can go Windows-free without having to eBay body parts to pay for a Mac ^^
(I love Macs, I just prefer my hardware cheaper.)