The CPU is on the support list for that motherboard, but your problem will likely be the PCI Express X16 slot. It is likely PCI Express 1.0 or 1.1, which may not be fast enough for the GTX 750Ti you had in mind. However, if you could find a later Socket LGA775 motherboard, using P35 or P45 chipsets, that should get you PCI Express 2.0 slots, which will certainly help with the GPU. You may have to go with a used motherboard for that.
Casey