You can noew get vanities with all draowers and honestly who wants to be on their knees looking for something in the bathroom or kitchen. I actaully use Godmorgon from Ikea but often the clients choice for both counter and sink I do float them but put a pice along the back wall for a bit of stability

First of all, you don't want two sinks in a 48" vanity unless you don't value counter space. Since one of the items you show has two sinks I don't know what you're interested in. If you have a kitchen cabinet retailer near you, check them out as they usually sell bathroom vanities as well and you're more likely to find something higher quality than anything you can get at HD, and the price can even be reasonable. Just be aware that for the most part you get what you pay for in cabinets. If you buy a cheap import it could be falling apart in a short amount of time.

Cheap junk. And wholly unusable.