I have an old gmail account that I only have hanging around for a google profile, so I can use things such as google reader. Ideally I'd like to use my google for domains email address for this sort of thing, but it won't accept my email and password on their other apps. Is there some way I can set this up? Thanks
There are two ways:
I would not recommend option 1, since then it becomes hard to maintain two separate accounts which look the same. Additionally, it will be much harder to transition to #2 once it is forced on your domain. Within a month or two, the 2nd option will be forced on all domains. I'd recommend speeding up this process if you need it right away.
Note that even with method #2, you cannot use all of Google's services yet. Here's a list of some of the products that you cannot use: