Any idea how to beat the typical Stalker/Sentry/Immortal spam usually used by Protoss players in 1v1 leagues?

Pretty much most of the higher tier Protoss players seem to rely on this strategy: Wall up with photon cannons, spam tech, and strike while you are most likely be expanding. I've yet to find a reliable counter for this while playing as Zerg. Any tips will be helpful, thanks.

This is probably the only matchup I'll actually use banelings.

Unless I feel like it

Well TBH, usually when I do this it ends with siege tanks eating them for breakfast.

And I'm a random player, so usually if it ends up ZvZ its by chance.

Roach spam is pretty much the standard strategy for ZvZ anyways, so unless he went for full teching or zergling spam I'll be in deep sh*t if I do this.

This post has been edited by Spiritviper: Mar 8 2011, 07:49 PM