Used Minolta 7d or Sony A100?

I'm as one might guess a Minolta user with lots of minolta lenses. I'm
at last considering going digital, but Minolta hasn't exactly been
releasing tons of cameras to consider.

I currently have a Minolta 700si which predates the Minolta 7 which the
Minolta 7d is based on. And I really like the build of it compared to
the cheaper 5-series. But the Minolta 7d is still 6 megapixles and goes
for about US$750-up on the used marked (where i know to look at least)
and the 10 mpx a100 do go for US$1000-up.

So, Either the build quality and (in some way) better handling of the
7d, or do the a100 pack that much punch to be prefered at that price point.

It IS the image quality that is important. I love doing landscapes,
nature, mountainbike / skiing shots and urban nightlife. So it have to
be the one of the two that gives me the best result in that under same
conditions.

Anyone help me choose?