Dutra,
When I got into bowl turning I didn't have a lot of money to invest in the name brand gouges... I wound up getting 3 different sized gouges from PSI... their Benjamin's Best... they work great for me and since one of the biggest keys to doing bowls well is to have your tools sharp and keep them sharp. The BB gouges are a good way to start when you will spend a lot of time learning to sharpen tools... you can wind up grinding away a lot of steel learning how to sharpen.... buy the best tool you can afford, learn to sharpen it, then learn the techniques of using it....(I'm still working on number 3, but I find that bowls are lots and lots of fun to make. Good luck and have fun.