SELECT Help Please

Hi All...  Consider the following table:

RecId      AssocId       Text

1              10                 blah

2              10                 blah

3              20                 blah

?              20                 blah

?              20                 blah

Certain records are "associated" with each other using the column AssocId.  I have a select statement that uses several other columns not shown and gets me a set of records.  But I also want to include the records that are associated with each of those records in the set regardless of their other columns. That is if I have:

SELECT * FROM Table WHERE RecId = 3

How do I also include those other 2 records whose AssocId match the one I got with the WHERE?  (and of course I want it in the same SQL statement...)

Any thoughts?  Thanks!