Integrated graphics will most likely not be able to handle video editing if you're using a program other than Windows Movie Maker. I suggest perhaps an ATI 9200 or a Nvidia 5200 for this. Their inexpensive (around $75 to $120) and will let you edit on programs that require more resources. For RAM; Kingston, PNY, Corsair, all name brands are good and they sell in dual 256mb sticks or single 512mb sticks whichever you prefer. I'm guessing you have an Intel seeing as how you named it by the GHz. Intel 1GHZ processors are Socket 370 so I assume you have a socket 370 motherboard. If this is the case I don't believe theirs much you can upgrade for this. If not, you should get a Socket 478 motherboard by any brand name company (MSI, ASUS, ABIT being leaders in this category) and a 2.0GHz or 2.4GHz intel. A 2.0 will run you about $70 for a Pentium 4 based Celeron and a 2.4 will be about 80$ for a Celeron. The celeron has 400FSB and the regular 2.4 with Prescott core had 533FSB and costs $143. Motherboard prices vary according to what features and accessories they come with. Hope this helps =D