Budget office PC build under $600

I am looking to acquire an office computer—one that will strictly be used for professional tasks and never for gaming. It must come with an original installation of Windows 10. To ensure adequate performance, I believe a 120GB SSD is necessary; furthermore, having an additional HDD would be a welcome addition, though it isn't a top priority. My budget is around $4,000, though naturally, the more cost-effective the option, the better. It doesn't matter which retailer I use, as I intend to order online and pay via cash on delivery.

Something like this...

Intel Core i3-4170
MSI H81M-P33
8GB Kingston DDR3 1600 MHz
Kingston HyperX Fury 120GB SSD
Toshiba 1TB 3.5" SATA III HDD
LG GH24NS DVD-RW
Antec 400W 80+ PSU
Micro ATX Case
Windows 10 64-bit

= $1353 - assembly and shipping included.

You could even get by with an Intel Celeron G1840. Just toss in a 240GB SSD if that's enough storage for you—and ditch the HDD entirely. Also, grab a better motherboard that actually has a USB 3.0 header, along with a case that supports USB 3.0.

1 x OCZ SSD ARC 100 240GB, OCZ Barefoot 3 M10 Controller
1 x Intel Celeron G1840 Processor (2.80GHz, 512KB, 2MB, 54 W, 1150) Box,
1 x Asrock B85M Pro3, S 1150, Supports 4th Gen Intel ® Core
1 x DDR3 4GB (1x4GB) Kingston, 1600MHz, CL11, Value
1 x Zalman T5 mini tower case. 170(W) x 427(H) x 348(D)mm.
1 x CORSAIR 430W Power Supply, CX430M, CX Series Modular, EPS12V v2.3
1 x LG GH24NS DVD burner, DVD±RW, 24x DVD±R ,8x DL , 40x CD-R

$846 admin

If you think you'll need more breathing room, just add another 4GB of RAM (because that single stick listed above isn't even $67). Plus, don't forget you'll need Windows, which runs about $900 worth of... well, you know $333. As for the power supply, you can definitely go cheaper; I only suggested this one because it's modular. You could also use an H81M-HDS motherboard, but there isn't much of a price difference here.

Do you need a monitor as well?

A monitor isn't strictly necessary here. Perhaps the only real improvement would be if the case featured a USB 3.0 port on the front panel—that would be handy. Also, I am not entirely convinced that 8GB of RAM is a requirement; I am currently running on just 4GB paired with a Samsung 850 EVO 120GB SSD, and honestly, the system feels incredibly snappy in terms of speed.

http://att.suntech.cz/suntech_att/L/...pLkhp8q_0_.jpg

You might want to consider picking up a higher-end USB 3.0 enclosure instead; take a look at the options and see what catches your eye.