Finally got my Video Card upgrade!
Now I got a quite cheap, but much a better video card than before - nVidia GeForce 6200 With 256 MB DDR and fully DirectX 9.0 compatible (unlike my old 4200)
I also got a extra 512 MB of RAM, and the performance change is noticeable, a little. So now I have 1.5 GB of ram which is between the minimum (1GB) and perfect (2 GB)

Even though they wre supposed to put it in a extra slot, that way i could have 2 GB, but it's not really such a big difference anyway.
Aero is really sweet in my opinion, and not slow at all, in fact it runs no slower than basic, so I think I will be using it all the time. The full vista ultimate experience is much much better with aero! Not to mention that I'll get enhanced graphics in games, will be able to run movie maker etc.
I'm going to switch to vista as the full time OS now, maybe do some customization later.
I won't abandon XP completely though, I might make some changes to Aero Ultimate, since I got the real deal now.
I also recommend everyone who is still on XP to try vista, it's JUST AWESOME!
Comments are welcome!