Hmmm
Cisco undoubtably make great network kit. However from what I gather mixing their kit with other vendor is a nightmare, and it's bloody expensive too.
We've just deployed a new VMWare farm (were running ESX 3.0.1) and as part of it we've replaced our switches with HP ProCurve, routers with Juniper and storage with EMC. FC Switches were from Brocade.
All support true industry standards and getting the lot to work together was suprising easy.
Every company need some sort of edge, and from my understanding of Cisco it's high quality kit with a high price tag, but they also innovate their own technology on top of standards which gives them the edge. Juniper and HP don't seem to play the proprietary technology card but otherwise seem to make equally high-quality kit at a slightly lower cost than Cisco.
Same goes for the server market. Dell have upped their game in quality and support stakes, and HP have always been up there with the best when it comes to x86/x64 iron. What's going to make Cisco any better/worse? As far as I can tell it's probably going to be the same as it's networking kit which is if you buy all Cisco (servers and switches) then you'll get an awesome network though probably using proprietary tech. And it'll cost a little more.
I'd rather have a mix of HP and Juniper at a lower cost that also results in a good performing and easily managed network.
