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Don't use a free modeler. It may seem easy at the beginning and zero price, but they are free because they produce meshes with lots of problems for render. If it's just for your use, it's ok, but don't sell things made with free modelers. They are free because they are worse.

DO use a free modeker or a trial donload to get started. As jestmart points out, both wings and blender, and you can add metasequoia to that, produce fine meshes.
Why hyperia is urging you to shell out money for software at this stage I don't know. You should find a UI that suits you - thats the most important thing