-make Flash animations
-make 3d models in Inventor (renders kill my Pentium D 820)
-do both of the above while livestreaming (doesn't work out too well right now)
-Play videogames (minecraft, sonic generations, skyrim, oblivion, burnout paradise, portal, and some older games)
-surf the web
-typical office tasks
please don't recommend to buy a new graphics card. I'm not as concerned with gaming performance (I have consoles), but right now this thing kills my productivity.
Intel Pentium D 820
Asus/HP P5LP-LE Limestone
3GB DDR2 RAM
250GB 7200rpm HDD
2x DVD-RW drives
MSi GeForce GT440
Conexant Falcon II NTSC Tuner
RaLink Turbo WiFi
also, don't worry about any software stuff. I have everything ready to go for the x64 switch.
CAD and video-editing will really be improved by a maximum amount of (physical or virtual) CPU cores (and a workstation GPU in the case of CAD, but you already know that).
I would suggest an Intel Z68+i7 build, but because you're on such a low budget, AMD might have to do the trick.
You seem to have pretty much chosen your parts.
They aren't what I would suggest, but on such a tight budget I can't really make a viable suggestion (the AMD or Intel motherboards I would suggest all start at about 130$...)
I had selected my parts, but the CPU I was looking at just went out of stock, so I need to find a different plan. I can't wait for restocking because I need everything to arrive before the 1st week of April.
All the parts came in on Wednesday and I made an hour of time to build it. I'm loving the performance. I wasn't really expecting it to improve gaming, but apparently my Pentium D was a huge bottleneck because all of my games run at a solid 75fps. They actually sent me a Gigabyte 870A-USB3 instead of that cheap-o MSi board I ordered; quite a step up. However, this board does not have IDE, so I ordered a new DVD burner and an additional 4GB of RAM, which should come in this week.