Evaluate Safety/Tolerability Intra-Arterial Temozolomide in Patients w/Extremity Melanoma by Isolated Limb Infusion

1. The primary objective of this study is to determine the safety profile of intra-arterial temozolomide administration during Isolated Limb Infusion (ILI) by defining the dose limiting toxicities associated with this treatment and to determine the maximum tolerated dose of intra-arterial administration of temozolomide during ILI that will be used in a phase II efficacy trial. 2. Population will include patients who have undergone a previous Melphalan based regional therapy for which they did not respond optimally and present with persistent, progressive, or recurrent disease. Study activities include tumor tissue sampling, blood sampling, and subjects will undergo an Isolated Limb Infusion. 3. To define both response in-field (area of the limb below the tourniquet) and out-of-field (any area outside the tourniquet) in patients treated with temozolomide based ILI. Response in this trial will be defined by the RECIST criteria (CR, PR, SD, PD at 12 weeks post ILI). A CR rate of 20% would be considered as preliminary evidence of a promising approach in this group of patients that have had a previous melphalan regional treatment. ILI with melphalan has a complete response rate of approximately 35% in naïve patients and 20% in patients who have previously received melphalan based regional therapy. To assess if the proposed treatment has any effect on quality of life as measured by the Functional Assessment of Cancer Therapy - Melanoma.