"Today I only drink wine, of course."
BTW: I always recommend Bodmer's 'The Loom of Language' to people who want a light-hearted and readable introduction to the history of European languages and their relationships. Unfortunately, it's rather dated and - as far as I know - out of print. (I could grab a copy on ebay a couple of years ago) Do you know of any modern book covering the same topics in an equally jargon free manner that could be used as a substitute? EDIT: just noted that archive.org has Bodmer's book available for free download: https://ia600309.us.archive.org/21/items/TheLoomOfLanguage/
Do you mean "Heute ich trinke..."? No. The verb has to be in second place. However, you could say "Ich trinke heute natürlich nur Wein."
http://german.about.com/library/weekly/aa032700a.htm (see "verb second")