I suggest you start with a CCNP kit than add pieces as you work on the CCIE. Since your practice for the CCIE will be a year or so from now, it would be best to wait to see if the requirements change. In any case, it is part of the learning expereince to understand what equipment you might need for the various lab scenarios.
The article below:
is a pretty good discussion of what and why you will need various hardware. Be sure to read the supplement at the end about CCNP and CCIE.
If I can help you further, let me know,
Donald B. Vitz
Skyline Advanced Technology Services
Skyline Advanced Technology Services - 490 Division Street - Campbell, CA - 95008
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If you have access you can also fire up an 11.5 UC cluster through Cisco DevNet which will give you a Pub/Sub/IM&P and a DC wich could be handy in the early stages