Yes, that price is pretty close to me. I just watched a review and the stuff that annoys me on the Garmin looks pretty much the same on the iGS, like laggy navigation and no way to easily create page layouts in the phone app and a millions of button clicks to go through the menues.
Cheapest I can see the 530 for is £199.99 at Tredz. Specs seem better on the iGS630 as well.