Quote - but before I got it I would check out the site videos ,see the you tube video's ,get the demo.Ask on forums the good & bad.

No need for caution, SketchUp Make is free software, there's nothing to lose from downloading and trying it. There's an 8-hour demo of the pro features, and after that it reverts to free.

Quote - See if it can do rounded edges.might want to see if it can to SubD's.

SketchUp can do rounded edges but not easily, Wings is much better for that. SubDs not posible because the mesh exported from the free version is all triangles. Pro version allows quad/Ngon export but that still won't benefit from subDividing because it wasn't modelled with edgeloops.

Quote -
if it can see how good it is at mapping & texturing.

On boxy objects Sketchup has the easiest mapping/texturing you'll ever do, one-click paint with textures, or if you want to adjust the position of textures like tiles or woodgrain, just slide the texture on the model as if it was wallpaper on wet glue. It makes a really ugly UVmap though, the UVs are pretty much 'for personal use only', they work, but you wouldn't want to distribute them as-is.

Quote - By deciding before you start, what one unit is going to be, such as, one unit = one foot.  Then 0.25 would equal 3 inches, 0.33 = four inches, etc.  When done creating, export and load in Poser, use one of the Poser measures, Geep makes a couple good ones.  Determine size against this, and you haven't saved anything in poser yet.  Go back into wings and whatever scaling factor you dialed into poser, select it all, scale it and save your .obj.  Takes longer to say how than it does to do it.

Doric.

For transferring objects to Poser you don't need to do any scaling operations in wings, you can use the custom scaling options in the obj import/export dialogs. Type in the funky factor to get the chair you made in Wings to fit perfectly under Vicky's butt and it remains stored in the export dialog, all models will be exported at the same scale. Similarly, set the Wings import scale so vicky arrives the right size for the chair you're making, and every model will come in that size.

Quote - After you all model ya meshes in Wings ,you all map it in Blender ?
Texture it with Blender & Gimp ?

Wings has very good mapping tools.