STP Logical Interfaces, virtual ports

As you probably know one have to take in account the max available numbers of virtual ports and logical interfaces for Spanning Tree when designing a switched network based on catalyst 6500's. Does somebody know if you also have these parameters if you're designing a network based on 4500's or 3750 stacks? And where to find it on the Cisco site
Rgrds

My issue deals with Spanning Tree Protocol or better the scalability of STP. see the following document:
http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/122sx/ol_4164.htm#wp26366
For choosing the right spanning tree protocol (RPVST+ or MST) you have to take logical interfaces and virtual ports into account on the 6500 platform. But what if you decide to use a different platform, for instance a 3750 stack.
Rgrds
Aad

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