I'm thinking about buying an SLR camera, I have had a lot of Sony compact cams, so it would be natural to get a Sony SLR, but which to buy ?

1. I can read from Jeffs reviews, that the lenses included in the packages are not so good, but I believe the dual-lense package is good value for money, what can I do ?
2. As said, I've been looking at the Sony A200 package with Sony DT-objektives, 18-70 mm and 75-300 mm the latter lense with F4,5 - 5,6. Will I be disappointed with the last lense at night ?
3. Any problems on compability with the Sony mounts (is this a narrow range) ?
4. Any suggestions on something else to look at, in the same pricerange ?

Thanks again.