Miguel...I mean no disrespect, but you have a lot to learn about gear. Please don't rush into this. Just buy quality gear from reputible manufacturers and you'll be fine. There's nothing wrong with buying the expensive, high-end stuff if you can afford it and WANT it, but there is plenty of safe, reliable gear out there that won't cost you an arm and a leg.
The more you surf around these forums you'll see lots of strong opinions...that really don't mean squat. Spend some time educating yourself on gear and trying different pieces before you buy. Divers are usually a friendly bunch of folks and won't mind letting you try their fins or mask or whatever.
Make up your own mind and don't let the folks on this board (me included) sway your opinion until you actually try it yourself. I've bought jacket BCDs, back inflate BCDs, BPWs, split fins, paddle fins, long hoses, short hoses, two window masks, single window masks, z-knifes, short boots, tall boots...you name it. Guess what, it all worked about the same.
Its the diver not the gear.