a Question on modeling and texturing in the game engine

hi just had a question about modeling and texturing.
the way ive always done it is i would make the low poly version of the mesh and mark the seems and uv map it.
then i would make a copy of the blend file and make the copy into a high poly version apply any type of textures and bump maps i would need and then bake the textures to a pic and bake the normals to a pic then apply the pics to the low poly model.

and ive been seeing lately that everyone else is doing it this way.

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my qustion is can you get a more profesional look doing it the way they are?

sorry broken link
its here
http://www.youtube.com/watch?v=9sdxG20SAzA&feature=player_embedded

Well, the way you describe would work well if you are sculpting! The moment you start extruding, you UV map get’s messed up. But I used that technique as well.
The best method is the one that works best for you, in terms of time/results.

ok cool thanks