Yup, no recommendation possible without knowing if this is an AGP or PCIe-slotted motherboard. If AGP, you can try and track down an old HD 4670 AGP, which I believe was the best GPU that used AGP, but I wouldn't invest much money in this. Simply put, you can refurbished rigs for $120 or so on Newegg that are far better than this PC. Unless there's something very specific that makes the PC interesting for a collecting, PCs age more like sandwiches than wine.