idk about the monitor, I'm sure he did
And I think if I OC'ed my hackintosh it would explode into flames lol. Hard to get great ventilation on a G4 Powermac Case
Cheapest Core i7 processor I could find on newegg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115202
$280 bucks
Motherboards are even more
Edit: Dirt cheapest MB is $190
http://www.newegg.com/Product/Product.aspx?Item=N82E16813130221
lol fair enough. did you price one???
• GIGABYTE GA-EX58-UD3R LGA 1366 Intel X58 $199.99
• Crucial 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1066 (PC3 8500) Triple Channel Kit Desktop Memory $89.99
• CLIO A380BK Fully Black SECC 1.0mm thickness ATX Full Tower Computer Case + GREATPOWER 650W PSU $149.98
• Intel Core i7 920 Nehalem 2.66GHz 4 x 256KB L2 Cache 8MB L3 Cache LGA 1366 130W Quad-Core Processor $279.99
• GIGABYTE GV-R487D5-1GD Radeon HD 4870 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card $259.99
• SAMSUNG Spinpoint F1 HD103UJ 1TB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM $99.99
i didnt include a DVD drive, they are dirt cheap. that system costs $640.95 US DOLLARS!!!!
that is pretty darn cheap, within the OP's ranges i reckon.
the GPU is fairly powerful, especially if he is 'occasionally' going to play games, you could use onboard and save ~$250.
the CPU can be OC'd to quite high, easily 3 on air so its pretty impressive