I used Shade 8.5, a little cumbersome to use but does work well, and I use Hexagon 2, if you can keep it from crashing it work well too. If you don't want to do the texturing in either program bring it into Vue or even poser and do it there. Take a look in the gallery to see some of the things I built using Hex and Shade.
I haven't had one Hex crash since 2.2 came out. As for texturing, I would recommend GIMP or some other 2D program, like Corel Photopaint or Photoshop before Poser. It doesn't do texturing, though it does do procedural shaders. If you don't want to do your UV mapping in Hex or your modeler then UV Mapper classic is free. (Pro is only $60.)
I picked up a copy of Shade 7 cheap, unless Shade 8 has a major interface overhaul, which based on the interface difference between Poser 5 and Poser 7 I tend to doubt, I would, personally, rather fight my way through Blender's interface. Especially at the price they want for Shade. If you are willing to spend that kind of money, pocket some change and get Lightwave. (It was good enough for Babylon 5 and was used in Serenity.)
For someone just getting into 3d, my recommendation is to start cheap but get something with some power targeted at the entry level modeler ((Which is why I recommended Hex while it was on sale.). If it is something you want to get into and you have a knack for it then play with all the demos and spend your money after you find what you want to use.
There are, literally, dozens of 3D modeling applications out there. In price range they run from Free to $10,000+. Figure out if it is something you really want to do before sinking large quantities of money into it. Then find an interface you like. Then, and only then, buy it.