Please help!! Mac Pro 2007 or iMac I3

[Maczog]

2 x Dual core 2.66Ghz CPU 5150
4GB ram
250GB hard drive
OSX10.6 Loaded
Is the Mac Pro's specs.
Or should i get an I3 iMac.
I usualy have 3-5 compilers open on my Macbook.
Along with 10 or more Photoshop projects and Steam, so it can get slow.
I would like something that would handle that well.
The only thing im put off with the Mac Pro is it has no screen.
I do have a screen but my younger brother is using it mostly all the time.
But i can buy another one.
Which do you think would be best?
Thanks guys

 

[Hellhammer]

Can you afford a 27" iMac with i5 or i7 CPU? Take a look at refurbs, some of them go for as low as ~1500$. Those will beat the Mac Pro easily.