Sorry to hear about your cat. Here are a couple of links to browse:

http://www.veterinarypartner.com/Content.plx?P=A&A=1446&S=1&SourceID=42

http://www.marvistavet.com/html/body_feline_lymphoma.html

Here is also an extract from this site:

http://www.zzcat.com/resources/overview.htm

"In one study 7 cats were treated with the COP protocol (cyclophosphamide,
vincristine, and prednisone). Of these 7 cats, 6 achieved remission with a
median duration of remission lasted 19 weeks. The grade of intestinal lymphoma
was not considered.
- In one study, 14 cats were treated with cyclophosphamide, vincristine, and
methotrexate. Median survival time was 12 weeks. The grade of the intestinal
lymphoma was not considered.
- In another study, 132 cats with lymphoma were treated with COP plus
doxorubicin, L-asparaginase, and methotrexate (the "CHOP-like" protocol). Of
this group 125 cats had intestinal lymphoma. Out of the total 132 cats, 67%
achieved remission with a 21-week disease-free interval. Another study using
the same protocol on 21 cats with intestinal lymphoma, only 38% achieved
remission but these cats had disease-free interval of 40 weeks.
- In another study, 25 cats with intestinal lymphoma, 25 of which had high-
grade lymphoma, were treated with COP. Those who achieved complete remission
had a 30-week disease-free interval. The overall median survival when all 25
cats were considered was only 7 weeks.
- Another study looked at 11 cats with high-grade intestinal lymphoma treated
with COP plus doxorubicin and L-asparaginase. Only 18% achieved complete
remission. Median survival was only 11 weeks.
- As for low-grade intestinal lymphoma, a study of 50 cats included 36 treated
with prednisone and chlorambucil. Here, 69% achieved complete remission for a
median duration of 20.5 months"

As you can see the grade of the lymphoma is very much indicative of the period
of remission.

Wishing you all the best,

Peter

I have no experience with this condition to share.  But I do hope all goes well
with kitty (and you too!)  on Friday.  Me and my crew will keep our paws
crossed.