I personally like to belive that Sakura really did love Sasuke. I think she will always love him, but they wont end up together. I think he's already broken her heart, and Naruto... well, he's always been there for her. They'll end up together, or at least strongly implied as a couple.
Shikamaru will definitely be with Temari. He makes so many comments about his parents relationship, and then goes and says she's scarier than her mom. She's exactly the sort of strong willed woman he needs.
As for Hinata, I strongly feel she'll end up with Kiba. He's always showing concern for her, and teasing her about Naruto. I think he's jealous of her feelings for Naruto. So they're a good match. He's a lot like Naruto, after all. Only he has a doggie!
Also, Rock Lee will end up sacrificing himself somewhere along the line. He's a great guy, and he's always there to protect others. I just have a feeling that he wont make it to the last chapter. Which is really sad, but sometimes that stuff happens.
As for Ino, she's meant for Chouji. Just trust me on that!
Sai will find someone... I'm just not sure who. Ohh, I bet Karin falls in love with me the minute she lays eyes on him. >.< Everyone says he's a lot like Sasuke, after all.
Sasuke, by the way, will end up just like Kakashi- alone, but okay with it.