By CPU do you mean just the processor, 'cos that is what it means to us.
But I gather you might mean the BOX..... inclusive of:
Processor (CPU)
Hard Disc (HDD)
Memory (RAM)
CD/DVD Drive (ODD)
Motherboard (Mobo)
Case (Cabinet)
Power Supply Unit (PSU/SMPS)
Video Card (GPU)
Right?
And you have that budget just for these.....
You have extra dough for the Keyboard, Mouse , Monitor right? not included here....