It depend on a few things.
Condition (new or used)
Motherboard (Xenon, opus, falcon, Jasper) (In order of demand, jasper being the most sought after)
Accessories (cables, hdd, controllers)
You can get them anywhere from £80 - £350
James.
P.s. I have some brand new jasper bundles and also brand new falcon bundles if you are interested.
about 50 max for a xenon and 200-230 for a jasper,anything more and your being ripped off,falcons typically go for between 80-150 -theres also no such thing as a new jtag console,despite what some folk try to say,once its been opened its used
If you are the patient type then you should wait until the rebooter has been finished/polished for the latest "JTAG" reset glitch. This will basically allow 95% of all 360's to be "chipped" which means you buy your own 360 from anywhere you can get it cheapest.....then either solder the "chip" yourself or pay someone to do it for you. Either way due to the fact that Jtagable 360's will no longer be limited to a few certain older models will/should bring the prices down.