It's great to make it look expensive, but don't forget that you (probably) need a kitchen to work really well as well. If you spend too much on the look, you may be sacrificing some of the practicality, which will just mean it ends up somewhat messy and annoying.
Take a look at your current kitchen right now, and think about what is not working with it - e.g. is there a lot of stuff that hasn't been put away because there isn't a good place for it? When you open a cupboard, can you see and get out everything you need straight away, or do you have to pull things out to get at the things at the back, and then put the first things back in the cupboard as well?
We just bought a new kitchen, and spent a fortune on the cabinets, and skimped on the worktops, which is exactly what everyone tells you not to do - because you can fit far, far more stuff in in series of drawers (more expensive) than you can in a cupboard taking up the same amount of space, and, long term, we would rather have the space and ease of use in the kitchen than posh worktops.
This is the second galley kitchen we've had re-fitted, and having seen what an amazing effect better storage had on the previous kitchen, there was no way we were going back to having cupboards.
That said, I've heard very good things about Ikea kitchens, and if we hadn't known exactly what we wanted, might have gone for them this time.