Active Directory Design

I am seeking advice on setting up a W2K AD design. The home office currently does not have a Microsoft domain so this is starting from scratch(we are currently Novell). We are a smallish company with 300 users at the home office with a number of smaller remote sites

I had a quote from a vendor with the following specs:

Single AD forest
2 AD Domains (Root and User Domain)

3 servers in each domain
2 Global Catalog Servers
1 DC to run Infrastructure Master FSMO

Total of 6 servers for 2 domains

Is this reasonable? It seems like a lot of servers just to get W2K up and running. This design does not include any application servers such as Exchange.