URL is fixed.
BTW you don't mention gaming, though I see in your last thread that people suggested some hefty graphics cards.
About the RAM, I can't say for sure, someone else will have to help you.
i5 would cost a little bit more, though they did bump up the 1055T to about $30 more than the last time I saw it
($180).
The
i5-750 costs nearly the same, but the platform will be more expensive.
The
cheapest H55 motherboards are going to cost about $80, and will NOT support USB 3.0, nor SATA 6gb/s. If you're interested in those features (don't ask how useful they are/will be, I really don't know), you'll be looking at $120 for an
ASUS P7P55 LX LGA 1156 Intel P55 ATX Intel Motherboard.
Not only that, but for either of those motherboards, you'll need to buy a graphics card of some sort.
Everything else about the i5 build can be the same.
EDIT (This is what happens if I don't take the time to think through a post):
With the AMD build, you can just add in a new graphics card whenever. The only thing is that if you're planning on that, you'll want to get a stronger powersupply so you won't have to replace it later. Just a nice option.
edit edit- also what kind of case should I look into? I've never actually built a PC. I've repaired many and have a good understanding of how everything works, just never built one from scratch.
It honestly won't make a big difference; this isn't a monster gaming build so you won't need to worry about cooling. Note that some cases have external FireWire ports, but they aren't always reliable IMO. Mine doesn't work anyway.
You probably just want to look for aesthetics, also you'll most likely want a mid-tower, which should be about the same size as a regular store bought computer (though most are a little bigger). I have an
antec 300 and it's a decent case for me.
I don't have any experience with firewire (aside from the aforementioned case thing), but I'm pretty sure you'll just get a PCI add-in card.
Again, I have no experience, but
newegg has tons that look fine, even the cheap $3 seems like it would work, though if someone more knowledgeable has something to say...
Now about RAM, in my uneducated opinion, I don't think audio/video editing will need more than 4GB. The H55 board I linked to only has two RAM slots though.