IBEX are good quality bikes (I have an IBEX Ignition mtb) but I would recommend you look at and test road bikes at an LBS.

From a componentry point of view, the IBEX may seem like a good deal but I am not sure about their frame. Quality, I am pretty sure is OK but from reviews I have read on IBEX road bikes, their road frames may not be the best you can find at that price. Are Neuvation M28 Aero wheels good? No idea. Now, someone may jump in and prove differently, that's fine.

I think, if you are not already into road riding, it would be better for you to buy from an LBS. Sizing is very important + in this price range and up, many lbs will provide a year or more of free maintenance (lifetime is not uncommon), the possibility of swapping components and a professional advice, and discounts on accessories you will also be able to try (think pedals, shoes, gloves, clothes etc). This is worth a few $100's.

Also, don't focus entirely on Ultegra 10, bring in bikes with 9spds and also 105 in your choice mix.