Is this a good build?

[Rhistar]

I'm trying to build a cheap, small, gaming pc. Here are my components.

SILVERSTONE Sugo Series SG05BB-450

ASUS P8H61-I (REV 3.0) LGA 1155 Intel H61 HDMI USB 3.0 Mini ITX Intel Motherboard

Intel Core i3-2120

EVGA SuperClocked 01G-P3-1567-KR GeForce GTX 560 Ti (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card

Thermaltake Slim X3 CLP0534 80mm CPU Cooler

LITE-ON CD/DVD Burner(Slot-load) 8X DVD R 8X DVD RW 6X DVD R DL 8X DVD-R 6X DVD-RW 8X DVD-ROM 24X CD-R 24X CD-RW 24X CD-ROM SATA Model DC-8A2SH - OEM

Western Digital Caviar Green WD10EARS 1TB 5400 RPM 64MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory Model F3-10666CL9D-8GBRL

StarTech SLSATAADAP Female Slimline SATA to SATA Adapter with Power

And a 120gb SSD i have from a previous build.

My questions are...

1) Is the 450 PSU enough for the 560?
2) Will the i3 be a bottleneck?
3) Is it possible to go cheaper? Right now i'm at about $822 from newegg (including year replacement policy)

This has to be a small system, because i'm going to take it with me to South Korea, where there isn't that much space. I decided against a laptop, because they cost more, and it seems every year or 2 you need a new one.

 

[kajabla]

I think the 450 would be pushing it. You'd probably be able to get by, but it would certainly be inefficient (PSUs lose efficiency close to their load limits). I'd go with at least a 500, and a 550 or 600 wouldn't hurt.
I don't think the i3 will bottleneck, but I'm not sure.
Cheaper in what sense? Cheaper with exactly the same performance?

 

[Rhistar]

Yep. Looking to go as cheap as i can, but still have a good gaming box. The 450 PSU is a ssf and it comes with the case, so i do not think i'll be changing it.

 

[kajabla]

Go i3-2100. I think you won't bottleneck.

 

[AdrianPerry]

Strongly recommend 7200RPM HDD over a 5400RPM.

Take a look at the Samsung SpinPoint F3's 1TB.

500w PSU is recommended for 560Ti

Would also recommend looking into 1600MHz RAM. The price difference between 1333MHz and 1600MHz is minor. CL9 is fine. Make sure its 1.5v with Sandybridge