Ok, moved back. Doh! Didn't realize this was a continuation of another thread.

One note, if you are not asking a question on the article, you want to start your own thread. This isn't consulting, and it's a little inappropriate to ask a specific person for advice on your own issue.

As far as the config, it's hard to know what to recommend. The same size boxes for SQL will obviously give you more resources. you ought to be able to calculate disk space needs (mdf/ldf + 2 days backups at least and pad), for memory, get at least as much, it's cheap now.

CPU, go with something modern. You'd have to examine your system and determine how CPU bound it is now. If it's not, then you should be fine with the current CPU