TechSpot's PC Buying Guide offers an in-depth list of today's best desktop PC hardware, spanning four typical budgets starting at ~$500 for a well-balanced machine capable of medium workloads, up to $3,000+ for the Luxury build which includes the best PC hardware recommendations when budget is not a big concern. In-between you will find two mainstream systems that are good for heavy-multitasking and depending on your choice of GPU casual to high-end gaming.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips