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I've just reviewed your other posting. Normally, your data volume should be easily dealt with by a NPE-G2. However, your configuration is not typical. I suspect your configuration is causing a much, much higher CPU consumption per packet. Unfortunately, as your CPU consumption is principally interrupt, we can't easily tell which parts of your configuration is causing the high CPU consumption.
Nominally, what you've selected as a replacment would be ideal if whatever is consuming all your CPU is done within the 7600's hardware. Unfortunately, there are packet forwarding decisions on 7600s that are punted to the main processor. If your traffic does this on a 7600, you might obtain even worse performance.
If you have current maintenance, I would suggest opening a case with TAC. Identify what's consuming the CPU on your 7200. Once it's actually understood what's the cause, you might be able to remeditate on the 7200 or then know whether another platform (e.g. ASR1k, 7600) might be more suitable.
PS:
Oh, from your 7200 configuration, doubt it will make much of a difference, but you might also enable Turbo ACLs. Shouldn't hurt, might help.
