OUTLINE: During weeks 1 and 4, patients receive docetaxel IV over 1 hour followed by cisplatin IV over 30-60 minutes on day 1, and fluorouracil IV continuously on days 1-5. During weeks 6-8, patients undergo radical subtotal or total gastrectomy with a D2 lymph node dissection followed by percutaneous placement of an intraperitoneal port device. Beginning within 5 days after resection, patients with clear margins receive floxuridine and leucovorin calcium intraperitoneally on days 1-3 during weeks 1, 3, and 5 in the absence of disease progression or unacceptable toxicity. Quality of life is assessed prior to beginning study, prior to surgery, then monthly for 3 months beginning after completion of study therapy, then every 3 months through year 2, and then every 6 months through year 3. Patients are followed monthly for 3 months, then every 3 months through year 2, and then every 6 months though year 3.