MS SQL for large-scale document storage?

[improvius]

We're about to put together a db solution for storing and searching large quantities of documents, with SAS running on top of it. Ultimately this is going to be a data mining project. We're talking about 2 million docs per year, ranging from 1 to possibly hundreds of pages of text per doc. We'll be pulling down roughly 40,000 docs per week, most likely XML, HTML, or SGML format. The user base is actually pretty small - probably no more than 5.

My gut feeling is to go with DB2, but to be fair I wanted to see if SQL 2005 would be up to the task. I'm not very familiar with the current version, but I udnerstand there have been some big improvements in scalability. It is the policy of SAS not to make recommendations. Does this sound like something SQL 2005 could do well, or should I stick with my initial plan and use DB2?

[rmiao]

I have sql2k to manage large amount of docs, works well.