Crossover Hooks for Seattle/Hong Kong, campaign theme suggestions Options

[Slash_Thompson]

Getting ready to start an SR4 campaign (the first serious one, did one briefly after the edition released to try out the system, then went back to wrap up the SR3 game I've been running since forever, haha.)

looking over it, I think I'm interested in running a little bit more 'experienced' a game than the last one, which was about gutter punks and gangers and washed up ex-corporate types working their way from the street trash to experienced runner; by starting with an already established team working out of both seattle and hong kong.

so what I'm looking for is some suggestion on what sort of plots might work well to tie the two megaplexes together - obviously there will be individual plots in both cities, but I'm really hoping to find a few run hooks that I can use to really make it all hang together.

basically, looking more for possible campaign themes than specific individual runs, but everything will be appreciated :) once I'm back home, I'll post some of the things I was thinking of doing as central themes (I don't keep shadowrun notes at work, much as I wish I did sometimes)