Hi Nick,
I have a bandsaw and a power hacksaw. This is my second bandaw of this type and both have performed in the same manner. They are fairly quick but not very accurate in giving a straight cut no matter how you set them up. The blade is flexable so they do wander a little. But having said that I think they are good to have.
The power hacksaw I have yet to use properly, I expect it to be slower but more accurate, I'll have to let you know on that one at a later date when my garage build is done. At the mo it's under cover outside.
You can see them both here,
http://madmodder.net/index.php?topic=479.0I paid 70 quid for the hacksaw and 16 quid for the bandsaw.
Then I have one of those cut everything cut off saw, that is amaizing, about 70 quid again, wood, ally, steel even SS no problem. Cut straight too as well as fast and cold.
For the really tought stuff like hardened shafts the cut off saw will cut fine, but I don't like abusing it this way, maybe it's ok but I prefer to use the fiber blade cut off saw.
Then there are chop saws, circular saws, jig saws, etc and there is still one more type I would like to have around....
The thing is, depending on what you want to do, having just one type of saw would be quite limiting. I suppose if I had to make a choice I would keep the band saw as that seems to get used the most.