Just about every bit of our LAN/WAN is Cisco, aside from a 5-year old PacketShaper that sits on our primary Internet connection. It's starting to get a little long in the tooth, and we're looking at replacement options.
We need something that provides comparable functionality--the ability to montior and shape traffic (both TCP and UDP) up through Layer 7. The ability to do this rapidly is key as with a number of marketing/communications business units on our WAN, Internet spikes are common.
We have considerable experience with Diffserv, NBAR, and Netflow, but combined, they don't reach the level of granularity the PacketShaper does.
The former P-Cube acquisition (now SCE1000/2000), looks like it has some potential, but also looks like it's more geared toward very specific roles in the service provider arena.
Our Cisco VAR, SE, and AE are running this up the chain at Cisco, but I'm hoping someone here has dealt with similar needs.