My laptop is slowly coming towards the end of its life (getting really laggy, and slowly overheating) so im starting to consider what i should do? (have had it for 5 years hah so its treated me really well)

I am now a standard user. will use the odd Photoshop but no more gaming or anything needed for my laptop.

I am thinking of switching towards Macbooks so am kind of unclear whether if i should look at getting the new 13" retinas or get the current non retina one.

Ive also heard talks the next gen Intel (Haswell) could do quite well with retina screens since at this stage its only onboard graphics for retinas and non retinas.

so ive got 4 options that i can currently come up with
1) get current 13" retina
2) get current 13" non retina till 3rd gen comes out
3) wait for 2nd get 13" retina ie. get a cheapie ($600ish laptop) till then
4) clean/reformat my current laptop and install windows 8 and hope it'll last 6 months
5) other options??

recommendations?