Vanguard Mutual Funds Question

[PuppyFridayYall]

I have an account on Firstrade where I do my stocks. They also have Vanguard funds. I'm wondering if I should take some of my money out of my Firstrade account and invest directly with Vanguard...any benefits to this?

Also my plan is to invest and hold the following:

15% in VDMIX
15% in VEIEX
25% in VIVAX
22.5% in VISVX
22.5% in VISGX

What do you think? I'm not afraid to lose some money and I want to be fairly aggressive so is this representative of that?