Thanks folks. I'm not set on the Minolta, and might look at the Sekonic, it all comes down to price more than anything.
If you're looking at an electronic one, also check what mode it works in (aperture or shutter priority or either) as, if you work generally in one and the meter works in the other, it's a pain.
I usally give priority to apertures (even when working manually I tend to think apertures first). Like Paul, I have the IVf which is shutter priority (you set the shutter speed and it tells you what aperture to use). You can adjust the reading afterwards to what combination you want but I just find it annoying to have to do it every time. I also have a Gossen Variosix F which works in either mode but I don't have a spot attachment for it like I do the Minolta so rarely use it.