Due to the voting poll on the site, I can safely announce that the want for a Framebuffer tutorial outmatched the other suggested tutorials with the following outcome:
1 – OpenGL: Framebuffers (88 votes)
2 – GLSL: Bumpmapping (52 votes)
3 – OpenCL: Setup (20 votes)
4 – XNA: Setup (14 votes)
Therefore I have written and put up a fairly extensive tutorial on creating and using frame buffers in OpenGL. You can find it at: Framebuffer Tutorial
I have also modified the GLUT keyboard input tutorial to also feature special keys, such as arrow keys.
I’ll be putting up another poll shortly for upcoming tutorials, and yes, I do take suggestions!