Use ARCH material to pass DESGN?

in CCDA & CCDP
I'm going to go for my CCDP before long. I haven't studied any design material yet but do work at a large enterprise and have been a NE for 6 years now.
Does the ARCH OCG contain most of the info found in DESGN? Or do I really need to get DESGN specific material to pass the CCDA?
Does the ARCH OCG contain most of the info found in DESGN? Or do I really need to get DESGN specific material to pass the CCDA?
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2x 2950
2x 3550
2x 2650XM
2x 3640
1x 2801
2x 2950
2x 3550
2x 2650XM
2x 3640
1x 2801
Comments
If you don't have this fundamental knowledge/experience, I would highly recommend reviewing Designing for Cisco Internetwork Solutions FLG (3rd Edition) and/or Top-Down Network Design (3rd Edition) and familiarize yourself with Cisco Design Zone.
What I found to be really Helpful was the OCG along with the Skillsoft training modules (if you have the budget is like 500$). But I feel I learned the most from the Skillsoft training module and felt the exam content was very much related to the sample questions in their.
2x 2950
2x 3550
2x 2650XM
2x 3640
1x 2801