Thank you keppel, I'm going to keep these in mind as well.

Quote - If you loop select the row of verts/edges in the uv image editor window and then press the "W" key a range of options will come up to straighten the selection.  Selecting the "Auto Align" will align your verts along the axis that is closest to that which the majority of your verts are already aligned to.  "Straighten" will align your verts along a line between the first and last verts in the selection.  The other options align relative to the defined axis. Another technique that may assist you in the example you have given is to unwrap your mesh using the "Follow Active Quads" option.  To use it look at the mesh you want to unwrap and select a face that is still a quad.  Use the "L" key to select the remaining faces of the mesh.  Press "U" to bring up your uv mapping options and select "Follow Active Quads".  There is a box that appears where you can choose one of three options.  The "Even" option will unwrap your mesh so that all the faces have been laid out in a perfect grid.

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OK . . . Where's my chocolate?

Butterfly Dezignz