Recent fights which are good: Cruz vs Faber II (last weekend recent) in fact check out the whole UFC 132, it was a good card. Jose Aldo vs Mark Hominick was excellent Frankie Edgar vs Gray Maynard was really good as well. Those are the three best recent fights I can think of but I may have missed some because my interest in MMA is waning now that I'm getting into Boxing. The two best fights from last year which you should watch are: Chan Sung Jung vs Leonard Garcia- Not much in the way of technique but really exciting Kazuo Misaki vs Jorge Santiago II- Really good back and forth technical battle and of course some of the others pereviously mentioned
Make sure to watch the first UFC events, like 1-15. That was the beginning of main stream mma. Watch all of the Pride events you can find. Try to find as much footage of Fedor, Anderson Silva, Georges St Pierre, BJ Penn, Matt Hughes, Chuck Liddell, Wanderlei Silva, and Shogun Rua as you can. You will then be well on your way.