leopard like apps

[giantdave]

so i had leopard on my mbp last semester and then it crashed, so im back to tiger (lets not talk about where i got leopard) but anyway.....the biggest apps i liked in leopard were spaces and stacks. so does anyone know of any apps like have the same effect of these?

 

[r.j.s]

Virtuedesktops gives the spaces-like multiple desktops. I'm not sure about stacks.