I'm wanting to upgrade my 35mm SLR to DSLR, and having Minolta Dynax I realise opting for Sony Alpha is my easiest option as my kit would integrate without extra expense
I'm looking at spending around 250, and am swaying towards the A300/A350/A380 if I can find within my budget
Has anyone any tips/advice on such an upgrade?
Is the 300 series a vast improvement on the 200 series?
What lens range would my exsisting 28-105 and 100-300 lenses compare to in DSLR?

TIA
Andy