I want to put it all into a PSPICE model, but I don't know that PSPICE will have both the chips and transformers i want to use, I want to model it in the program first partially to make sure everything works and partially because i don't have the money to order all of the parts right now (it is going to cost close th $400!!). I also will have alot more free time on my hands this summer, Auburn doesn't offer labs in the summer, so all i have to worry about is lectures, so I want to actually build it over this summer. One thing i noticed on the INA103 data sheets is that they said "these chips can replace transformers" will it create any forseeable problems to use both the jensen transformers and the burr brown chips?