i prefer to go for decent specs (cpu, ram, hdd space etc) running the igp. can save some not buying a gpu you won't use and get a decent i5 system. then put the rest into a new psu and gpu (stock psu's are usually weak) can stay under $1000 and overall get a better system. i've done this with a number of "office" pc's they sell. they tend to come with a lot of ram and the average mid tower case that can handle a new gpu.