Anyone?

Thankyou for all your tips. We were looking for frameless ideally too as we think they look best. With a bit of searching around we have managed to find one that fit our budget. I chatted to a glass company too but looks like it would be too expensive for us for now. :)

The installation looks like a robotic smilie face...

Yes. But with built-ins the crown molding should continue along the bookcases too, so closing off a small section of the top won't look bad. If you don't want to go all the way up, close off the top section, flush with the chimney and column, so your crown molding goes in a straight line. 2. No gaps. But you shelving will need to be a bit deeper then the chimney, because you don't want your books sticking out. If you want some more space between your mantle and the books, have the builder extend the chimney wall sideways, see example: If you want your built-ins recessed, the chimney should be filled out.. I would suggest a wider mantle base, from unit to unit, because these little carpet corners will most likely look off.. 3. Have a little less shelves where you want to mount your tv. Pop up? That would be a waste of the cabinet below. And doors at that height won't look great too. Have some doors on the lowest section, to balance out the visuals of 'filling' and 'furniture'. 4. The same color as your doors, trim, mantle. White. There will be enough color in them once they're filled.