that systsem is much better than previous one, but still not good.
Ram.. 2700 is not good, u need to get some 3200. u dont need higher than 3200 unless u overclock. 1gb ram is also recommended. If u dont have nough money, cut down the cpu to a 3200+ and get better graphics card and ram.
for the gfx, try getting a 6600gt, or a 9800 pro, something in that range.