ah yes, i've heard of how hard Portuguese really is. it seems easy compared to Spanish, French, and Italian since they're all based on Latin, but i've heard talk that Portuguese is actually one of the hardest languages in the world, along with Russian and Chinese.

i do find watching subtitled anime or playing subtitled games somewhat helpful, although i can tell that the translation is not direct. such is the case in games like "Soul Calibur II", "The Bouncer", "Samurai Warriors", and "MegaMan Network Transmission".
your HTML idea does sound promising; we could learn some Japanese, and some Portuguese at the same time! or, when it comes to Portuguese fans, Japanese and English, and with Japanese fans, Portuguese and English. i gotta say, that would sound quite helpful! *thumbs up*