Well, I have to tell you that a few of the models you are putting out are already offered for free, such as the cereal box, the washing machine (with a dryer). The Television is a cube primitive with the photograph of the T.V. on the front face, as is the washer. The crates look like they are only resized (or reduced) versions of each other. The textures as a whole could use some work.
The signs are pretty good, but unless you plan on making many, many different ones; there is a free version of the program "Signs" floating around, along with a few programs to generate the actual images that go on the signs (for free)...which you may know of.
On top of that, do you plan on putting these all in an installer? Right now, I really wouldn't pay for these at all, largely because some of the textures clash a bit with the stock FPSCreator media.
I'm giving you constructive criticism because you plan on selling these to the community without putting out any free media for everyone to check out first. Take it for what it's worth.
-Keith