Looks like the 18-55mm and the 55-200 got a goos workout. 14 megs do make a slight difference.
I have the A200 and use the 55-200mm with good results. I have the "Beercan 70-210 f4 a legend sharpie
The best Minolta lens affordible is the 75-300mm f4.5-5.7 "Big Berecan" first generation and New Generation pre 1991 is a real sharpie with the focus limiter button and a proper hood.
The Sigma 70-300mm f4-5.6 ApO Macro comes in as a close second and focuses faster and can be bought cheap but watch out for stripped plastic gear problems with cameras above any A100 The Tamron 70-300mm is fair.
A good buy would be the Tamron 200-400mm if yoiu get a good copy.
Any of the above lens will work fair with a 1.4x teleconverter but you will lose i f stop
The 3x teleconverter will force you into manual focus and a crappy pic and you lose 3 f stop
You really don`t need a good editing program if you set up the menu this way ...works well and fast no more fiddling around.
Go to menu
to creative style select Vivid and dial in contrast +3 saturation 0 or +1 ans Sharpness to +3
Quality to fine
Flash to ADI flash
Af illuminator to Auto
Set both NR noise reduction to on
Control dial setup to APERTURE
go TO Fn button and under metering mode select Spot
then AF area to Spot
autofucs mode to AFA
auto white balance Select ISO to auto Turn on the D-Range Optimizer to advanced to get better contrast inn shadows
You now have a killer setup for two important programs.
For quick pictures of ducks and geese turn the Dial to P and shoot away as that mode is a sure fire point and shoot custom automatic point and shoot
For more Advanced shooters you can turn the dial to A aperture priority mode and use the thumb wheel in front of the shutter button to adjust the F stop to control the size of the lens blade opening usually shooting at F8 is a good sharp compromise