There are a whole series of SSIS transforms that Microsoft has made available for download. They have differing degrees of usefulness, and have been available for a while but I am putting them out here for future reference. Off the top of my head, it looks like Regex would be useful, UnPackDecimal if you are deal with mainframe files, calendar transform (as I recall it has a dependency on a DLL from SSAS though).
Regex is an SSIS dataflow component that applies a configured regular expression against an incoming column, matching, extracting, or splitting, as configured by the user.
ConfigureUnDouble takes a text column and removes bracketing quotes if present, plus replaces double quotes inside the text with sinqle quotes. Configure the quote character by, on the first tab of the advanced editor, setting the "Qualifier" custom property to the desired value.
RTrimPlus takes a string or unicode column and removes trailing spaces, whether ASCII or Japanese.
UnpackDecimal takes an input column formatted in packed decimal (comp-3) and generates the corresponding Decimal value.
UnDoubleOut is an SSIS dataflow component that removes qualifiers from quoted text, either in place or via the creation of a new output column.
CodePageConvert is an SSIS dataflow component that translates from and to any code page or unicode character representations.
SeeBuffer is an SSIS dataflow component that sits in a data flow and is provided a look at each buffer that is presented to it.
UnDouble takes a text column and removes bracketing quotes if present, plus replaces double quotes inside the text with sinqle quotes.
NullDetector is an SSIS dataflow component that sits astride a data flow, and, depending on whether the value of a user-indicated column is null or not, routes rows to one or the other of its outputs.
CalendarTransform is an SSIS dataflow transform component that generates standard calendar attributes