Lisa,
My husband had a liver resection last year in July (at age 59). (He had 15% of a kidney removed in 5/07 for primary kidney cancer then biopsy of liver showed primary liver cancer-very unusual, they say) His liver tumor was 4.6 cm prior to resection. He was not offered any other treatment or options before or after resection. He has a large scar (big peace sign/mercedes logo) on his chest. One part nearly goes from nipple to hip bone. He was IP about 9 days post-op. Had some complications when bile backed up & he had NG tube stuck down throat to relieve bloat and then had abcess week after discharge that required weekend back in the hospital & more drains inserted. It is a major operation and takes a couple of months to recover from baring complications. I would say it is last choice option. You seem to have made remarkable improvement with chemo. Good luck to you!
Liz