[mootothemax]

I've noticed similar as I become more and more conversant in Polish - adapting to new grammatical forms definitely makes me think in a different manner.

That, and a new, huge, appreciation for anyone that learns the easy-to-start, nightmare-to-master, English as a second language.

[agrostis]

You might find interesting Anna Wierzbicka's essay on her own experience of bilingualism (http://www.une.edu.au/bcss/linguistics/nsm/pdfs/double-life....). Wierzbicka is a Polish-Australian linguist specializing in semantic universals and their cross-cultural manifestations, so it's kind of an insider's account, but charmingly personal at that.

[mootothemax]

Hey, sorry for taking so long to reply, that's an awesome link, thanks! :)