Hey Bmac, nice model. From the perspective view he has a pretty good weight about him! I do have a few suggestions if that is alright.
When modelling, its a good idea to use as many quads (four sided polygons) as possible. It keeps the mesh clean, and edge loops easier to establish. Down the middle of your model there are quite a few triangles. See on the sides of your model there are nice quads, on the front, and down the middle of the back, there are quite a few triangles that can be converted to polygons.
To convert them in blender, select the two triangles you want to form a quad, and press "F". This will form a new face from the triangles. It may still be a little funky as it doesn't align the faces into one flat face, it just removes the edge that separates them. To overcome this, go into vertex mode, select the 4 vertices that form the face, and scale ('S') along the closest perpendicular axis. Basically, it's the axis that the quad is facing towards. I reckon it will be the Y axis for this model, but maybe the X axis. When you have pressed scale->axis (S then Y), now press 0 (not keypad). This will scale all the vertices along that axis to the averaged base location on that axis. Not easy to describe, but you will see what I mean. The vertices will all scale to the same position on the Y axis, making the quad flat. Once you do it a few times you will realise it is really easy and quick. Continue until you have a lot of lovely, flat quads on your model
Also, some vertices might not be flat on an axis, such as the slightly rotate ones on the side. With this, you just have to scale it along the closest axis. It will mess up your vertices a tiny bit, but then you can just rotate the flat face back to the position you wanted.
Hope that helped. I really should have put images in. If you get stuck, I will do that
Also, you could add a few extra loops around the upper thigh area. It will make animating him a little easier, and give you a nice mesh. To add loops, press K->loop cut (I think...off the top of my head here).
Greenlig
P.S. - This message could be incoherent. Lack. Of. Sleepy. Goodness.
Blender3D - GIMP - WINXP - DBPro