Yes you are right. Strata does better with cross sectional data. Eviews with Time series.

SAS can take care of both. Auto-generates segmentation models, EM can be used for data mining, Forcast studio for time series. Web report studio for web reporting. -- A whole new ball-game, so to speak. Again SAS under UNIX is more powerful then anything you have seen.

SPSS is dumb. Cant compare with anything above.

Try GAUSS if you get a chance. Its daddy of all. Free I guess, but needs hard core coding. I guess university of Arizona has a whole website dedicated for it and you can get codes for free, if you know how to use them.