What computer should I get to do let's plays on minecraft for mods?

I want to be a famous minecrafter what computer should I go for? Would a turtle beach px3 work for a mic it has option to hook up to pc

Before looking to get a new computer, you should build the server your planning on using first, then when your ready you can put it on a flash drive and transfer it.
As for the computer I would go for Microsoft brand touchscreen laptop. They run fast, they are also very lightweight so you can transport them easily.

Minecraft isn't a game so much as it is a movement, the pivotal center of a block-breaking, edifice-building cult. But as impressive as Mojang's magnum opus might be, nothing in the world is perfect.

Get a computer here http://www.portatech.com/products/product.cshtml?ID=73238&O=73243,65474&r=g&origin=product-search&kwd=&source=pla
with THESE specs, not the ones they give you!

Barebones w/ AMD FX (Socket AM3+)
w/ AMD FX8350 - Eight-Core (8 x 4.2GHz - 16MB Cache)
Asus SABERTOOTH 990FX R2
Systems - Cooling Package 3 (Quiet)
32GB DDR3 1600MHz Memory (4 x 8GB - Dual Channel Kit)
1TB 7200RPM SATA3 6gb/sec- Hard Drive
120GB SATA3 Solid State Drive (SSD)
NZXT Gaming Mid Tower Case
850 Watt - 4x PCIe 6 Pin Connectors (Compat w/ High End Video Cards)
12x Blu-Ray Combo Drive
Windows 7 Home Premium
nVidia GeForce GTX650 - 2GB
Standard - Build, Burn-in, Test & Ship Out in Approx 3 to 5 Business Days
Barebones - 2 Year

This computer will have no lag, I promise, and it will get you places, and it's only 1500 dollars! (Really cheap for the money!) Btw, if your looking for a server to make your videos on, I recommend my server, 76.30.230.154