I always go with the fastest processor I can get, so I’d go with the 2.8. Since you have a Thunderbolt drive, you’re probably great with 512.
With the Display, I would totally wait till summer on that particular purchase. The reason being – the current displays are based on the old iMac displays, not the new ones. There’s a really strong chance that the current Thunderbolt displays will be updated in the next 5 or 6 months, if not sooner. Once you’ve used the new iMac display, the older displays feel like mirrors. That’s totally worth waiting on, IMHO.
And one overall note, in June I think the Haswell processor is coming out, which would probably be updated in the macbook pros shortly thereafter.
Read this:
https://gizmodo.com/now-is-a-horrible-time-to-buy-a-laptop-496028699
If you can hold off a few weeks on everything, I think you’ll be glad you did.
John Davidson | President / Creative Director | Magic Feather Inc.