OK, here we go again.
Asking what markers are good and what you should upgrade to are called VS threads. They are not allowed because they cause to many people to start arguing with each other. So, here is what you should do.
1: If you want to upgrade, select a price range that you want to spend.
2: Choose at least 5 markers you may be interested in and do research in them. Find the pros and cons of each one.
3: Look on the BST threads here. You can often find markers from 07-09 for really cheap and they will work great at any tournament level, You don't always need the newest marker to play tournament.
4: Check your local pro shop to see what they have and seeing how each one feels. Support your local shops.
5: Go to you local field and ask people about their markers if you are interested in it. Most people will let you test fire their marker or even play a game with it to let you see how it feels and shoots. Just be polite and curtious to them. Generally a good idea to use your own paint or to refill their hopper for them.
After you do all your research, then you can make a decision based upon the info your have gathered and can pick a marker than you think will suit you best.