Chris,
increasing the string lenght is possible, but with two limits.
Both are depending on the limit of Oracle table.
I don't remember tha maximum lenght we set (our consultant in fact), but I think is 2000, and if this value is the maximum you can set.
This limit is still theoretical, beacause of the Unicode mode.
Real limit for the user is about 1500 instead of 2000 we set in Oracle.
Marco