Learning Finnish is no easy task, but if you've set your mind on it, you can do it. Just prepare to having your brains explode every now and then. I've been teaching Finnish 4 months now for my gf and she can already express herself well.
I guess a year of hard study would bring you to the level that you can have conversations with people without too much effort.
As your goal is probably to speak Finnish, since as
>>4 said, there is close to none interesting Finnish literature out there, you should mostly focus on spoken Finnish. Learn the essential grammar through written Finnish though, since it's needed to understand the grammar of spoken Finnish.
Good luck.
http://www.uusikielemme.fi/grammar.html
http://www.cs.tut.fi/~jkorpela/Finnish.html
http://forum.wordreference.com/showpost.php?p=3925682&postcount=16
http://www.verbix.com/languages/finnish.shtml
http://www.uta.fi/%7Ekm56049/finnish/
http://www.ling.helsinki.fi/~fkarlsso/genkau2.html
Here are some websites I've bookmarked.
The last website is meant to be a mindfuck, but don't let it let you down.