Try this.
http://sketchup.google.com/
But, as already mentioned, there is no easy way, if you are serious on modelling.
Even MED is sort of complicated - simply, because not every single step is obvious. Wings3D has been already mentioned.

My 15-years old son started to learn Blender only from video tutorials and he made his first textured 3d-game-models in a few days. Also he rendered nice background images, made animations, did some lighting and worked through materials.

So you just need a couple of days following the tutorials, be patient and let the fun be the drive to get you through it.

any others tools that would help? for landscape trees, ect...

so far I got gamestudio free edition, gimp, and blender

tree[d]: 3D Tree generator(free) http://www.frecle.net/index.php?show=treed.about
Sculptris : 3D Sculpting
Audacity, if you need sounds editor
Anvil Studio if you feel like to create your own music...

For a complete list:
http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=371873&page=1

If you mainly want to focus on the programming part I'd suggest to spent a part of the money on some dummy model pack, and if the game works out create the final assets.

For modelling I'd go for a program that will do everything you need in one package. Silo is fine but doesn't do animation for example. Modtool is good for beginners.

Softimage Modtool, Truespace or Blender.

Magix Music Maker is the best for music I've found.

Makehuman might be useful to you, if you want a Daz 3D style character creator. It's free.

The Game Creators is a useful site, they have some useful tools and content packs.