Seems to me you have a couple of options - get something 'good enough' for now with the intention of upgrading later or go for the best possible combo now and hope you make the right choice.
I bought a Sunbean em6910 which came with a Sunbeam EM0480 grinder - I had to fix the grinder but the combo is serviceable - as in it delivers better coffee than most cafes. However it has been made very clear to me that I need to improve my grinder. The 6910 seems more than adequate for now, but the grinder is doing to me what a number of people hinted, implied or outright told me - making it difficult for me to perfect my techniques.
My advice would be to get a good 2nd hand machine - if you're not going to be doing a lot of milk stuff the twin thermoblock machines may be an unnecessary expense, and pay extra for a good grinder. Maybe go visit a site sponsor for advice or to try out machines, or browse on here specifically for grinders to see what is in your price range.