H61 i3-2100 mobos which BIOS features, brand and other little things

hi all, iam getting an i3 2100 for average gaming for my 1st build i dont need any of the following:
OC
USB3.0 or SATA III
SLI/Crossfire
SSD or RAID
integrated graphics

so I have decided that H61 is best for my needs/budget (around £50 for mobo).

now iam new to all this and not an expert. after deciding on the differences mentioned above, what iam confused about is the following:

1).brand, which one would u recommend for my needs

2).BIOS features, the stuff that i dont know anything about (e.g. @BIOS, 2 x 32 Mbit flash, Support for DualBIOS, PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b) and which brand has the best BIOS features (gigabyte has their own features same for ASUS)

3).form factor, i dont know if its just the size and number of slots or is this going to affect the air flow, psu, enough room for long gpu card and/or anything else

iam not asking u to explain what every single thing of those means, i just wanna know which things i need to look out for according to my needs
thanks for taking the time to help me.

is there anything else i need to watch out for? like pins? i dont know

a few mobos iam considering
http://www.dabs.com/products/asrock-s1155-intel-h61m-dd...
http://www.dabs.com/products/gigabyte-ga-h61m-d2-b3-lga...
http://www.ebuyer.com/261406-asus-p8h61-m-le-h61-socket...

thanks