Question: Ok, so with ArcGIS 10, ESRI has depricated 'Address Standardizing' in the new locators, I know you can still use the 9.3.1 locators to do this; but I heavily suspect that after the 10.1 version we will see this available less and less.  

The [FGDC Addressing Standard](http://www.fgdc.gov/standards/projects/FGDC-standards-projects/street-address) places a heavy value on good addresses having the Prefix, Prefix-Direction, Street-Name, Suffix, Suffic-Direction values for a good clean form. And my agency has a need for the same.  

Are there other tools out there that people are using to take structured addresses and parse them out fairly-reliably so they can be stored? Are any of them free?  

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\**Update:*\*I came across [this on CodePlex (US Address Parser)](http://usaddress.codeplex.com/) and it has given me a really good jumping off point. Its really nice in that its managed code that I can use all over the place and so far it has had a very high sucess rate at breaking down parts to be reviewed line by line and part by part.

Answer: 
I work in the address verification field, actually (a company called [SmartyStreets](https://smartystreets.com)) -- where we do postal address verification (in the United States).

You'll need a CASS-Certified vendor of address data. These companies' software has been approved by the USPS to append missing information onto an address and return accurate results. One such service is [US Street Address API](https://smartystreets.com/products/apis/us-street-api) -- or if you have a list of addresses, there's the [Bulk Address Validation Tool](https://smartystreets.com/products/list) -- which will give you the information you need. Both are free to an extent, but pretty affordable after that.

In ArcGIS, I believe the LiveAddress API can be implemented programmatically. Alternatively, a list of addresses can be exported to a spreadsheet or CSV and uploaded into the list scrubbing service.
Yes there are tools, free would depend on where your addresses are located.
There are many not free address scrubbers licensed by the USPS. One of the ones I use is [ZP4](http://www.semaphorecorp.com/cgi/zp4.html). I find the input and output to be flexible based on how you store your data currently and how you would like to store your data in the future.
You can choose to output your data, for those addresses which match to deliverable addresses within the USPS data, into 7 fragments. These fragments correspond to house number, predirection, street name, street suffix, postdirection, apartment unit abbreviation, and apartment number. It is the lease expensive solution I have found.