Renderosity currently has all its Clearance items on sale at $3.50.
There’s 64 pages to skim through down there in the murk, but my picks of the quality are:
Flying Cadet Lola Pepper for V4. The textures are a little iffy these days (the painted-on buttons, for instance), but the modeling is fine. I can’t believe that no-one ever made a texture makeover set for this, but there’s nothing out there. Also in Clearance, the matching Celestial Defender, Steam PropsSteamPunk – BFG, SteamPunk Wand (as .OBJ) and Marauder Arm for V4.
UnDead Carl for M4 and Morphs++.
Medieval Watermill by Dante78 (as an .OBJ file).
Also noticed some scripts: Dimension3D’s runtime packager and Poser Python tools for the very useful Eye Cube and others. The first is Windows, and I know that the latter still works in Poser 11 — I reviewed it here. One of its scripts can be important for serious work with Poser 11’s Comic Book real-time renders.