Hi Soken,
If you've ever laid hands on the A700, the superb speed, image quality and DRO processing (compared to the A200) will win you over instantly. I've personally owned, used and compared the A300, A700 & A900; and the only body I still use is the A700 :think: The speed and responsiveness of the A700 causes it to be like an "extension" of my brain - the moment I "think" of taking the photo, the shutter has already fired and is charging up for the next shot... same thing for the AF speed, you'll definitely feel the difference.
If you do not have a tree that grows $$$, I'd advise you to go for the A700 (instead of investing your hard-earned $$$ trying other stuff)... ... While the A700 may be 3x the price of the A200, three (or for that matter, ten) A200's will never be able to match one A700

Similarly, 10 cheapo lenses will never be able to replicate the bokeh, sharpness, and contrast of one expensive lens no matter how hard you tried... that's why some of us are willing to shell out $X,000 for our lenses (But this is after the frustration of buying and trying out 10 cheapo lens...
BTW, I use the A700 + CZ 16-80 almost all the time... ... this is one pair I cannot stop recommending. I also use the 50mm f1.7 and Minolta 80-200 APO G quite a lot too.
In any case, regardless of what you choose to try out, just enjoy shooting